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23103320031 = 3211793478513
BaseRepresentation
bin10101100001000100…
…001010111111011111
32012122002222021000200
4111201010022333133
5334303422220111
614340304154543
71445343660111
oct254104127737
965562867020
1023103320031
119886249320
124589308a53
1322425c5b8c
1411925053b1
1590341d256
hex56110afdf

23103320031 has 48 divisors (see below), whose sum is σ = 36976642560. Its totient is φ = 13783311360.

The previous prime is 23103320017. The next prime is 23103320057. The reversal of 23103320031 is 13002330132.

23103320031 is a `hidden beast` number, since 2 + 310 + 3 + 320 + 0 + 31 = 666.

It is not a de Polignac number, because 23103320031 - 222 = 23099125727 is a prime.

It is a super-2 number, since 2×231033200312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23103319986 and 23103320013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23103327031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2709631 + ... + 2718143.

It is an arithmetic number, because the mean of its divisors is an integer number (770346720).

Almost surely, 223103320031 is an apocalyptic number.

23103320031 is a deficient number, since it is larger than the sum of its proper divisors (13873322529).

23103320031 is a wasteful number, since it uses less digits than its factorization.

23103320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8956 (or 8953 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 23103320031 its reverse (13002330132), we get a palindrome (36105650163).

The spelling of 23103320031 in words is "twenty-three billion, one hundred three million, three hundred twenty thousand, thirty-one".

Divisors: 1 3 9 11 33 79 99 237 347 711 869 1041 2607 3123 3817 7821 8513 11451 25539 27413 34353 76617 82239 93643 246717 280929 301543 672527 842787 904629 2017581 2713887 2954011 6052743 7397797 8862033 22193391 26586099 32494121 66580173 97482363 233366869 292447089 700100607 2100301821 2567035559 7701106677 23103320031