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11231312103031 = 101195156996981
BaseRepresentation
bin1010001101101111111001…
…0111100100011001110111
31110202200222110012000011111
42203123332113210121313
52433003211344244111
635515332112415451
72236302245465416
oct243337627443167
943680873160144
1011231312103031
113640199978609
121314853847587
136361538c0137
142ab85405347d
15147243a38a21
hexa36fe5e4677

11231312103031 has 8 divisors (see below), whose sum is σ = 11348327104128. Its totient is φ = 11114411100000.

The previous prime is 11231312102963. The next prime is 11231312103041. The reversal of 11231312103031 is 13030121313211.

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 11231312103031 - 219 = 11231311578743 is a prime.

It is a super-2 number, since 2×112313121030312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11231312102993 and 11231312103011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231312103041) 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, 28301440 + ... + 28695541.

It is an arithmetic number, because the mean of its divisors is an integer number (1418540888016).

Almost surely, 211231312103031 is an apocalyptic number.

11231312103031 is a deficient number, since it is larger than the sum of its proper divisors (117015001097).

11231312103031 is a wasteful number, since it uses less digits than its factorization.

11231312103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56999033.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 11231312103031 its reverse (13030121313211), we get a palindrome (24261433416242).

The spelling of 11231312103031 in words is "eleven trillion, two hundred thirty-one billion, three hundred twelve million, one hundred three thousand, thirty-one".

Divisors: 1 101 1951 197051 56996981 5756695081 111201109931 11231312103031