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23023021031 = 1910141119489
BaseRepresentation
bin10101011100010001…
…110110101111100111
32012102111212122111122
4111130101312233213
5334122343133111
614324315124155
71443350310203
oct253421665747
965374778448
1023023021031
11984499350a
12456644365b
13222ba8c68a
1411859a1b03
158eb35acdb
hex55c476be7

23023021031 has 8 divisors (see below), whose sum is σ = 24237351600. Its totient is φ = 21808949760.

The previous prime is 23023020997. The next prime is 23023021039. The reversal of 23023021031 is 13012032032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23023021031 - 226 = 22955912167 is a prime.

It is a super-2 number, since 2×230230210312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23023021039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132935 + ... + 252423.

It is an arithmetic number, because the mean of its divisors is an integer number (3029668950).

Almost surely, 223023021031 is an apocalyptic number.

23023021031 is a deficient number, since it is larger than the sum of its proper divisors (1214330569).

23023021031 is a wasteful number, since it uses less digits than its factorization.

23023021031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129649.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23023021031 its reverse (13012032032), we get a palindrome (36035053063).

The spelling of 23023021031 in words is "twenty-three billion, twenty-three million, twenty-one thousand, thirty-one".

Divisors: 1 19 10141 119489 192679 2270291 1211737949 23023021031