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12313041031 = 139181489409
BaseRepresentation
bin10110111011110101…
…00001100010000111
31011210010011021220201
423131322201202013
5200204114303111
65353451111331
7614062056544
oct133572414207
934703137821
1012313041031
115249432a75
122477742547
131212c7a3c5
1484b427bcb
154c0ea86c1
hex2ddea1887

12313041031 has 8 divisors (see below), whose sum is σ = 12470166800. Its totient is φ = 12156894720.

The previous prime is 12313041017. The next prime is 12313041043. The reversal of 12313041031 is 13014031321.

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 12313041031 - 27 = 12313040903 is a prime.

It is a super-2 number, since 2×123130410312 (a number of 21 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 (12313041071) 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, 219546 + ... + 269863.

It is an arithmetic number, because the mean of its divisors is an integer number (1558770850).

Almost surely, 212313041031 is an apocalyptic number.

12313041031 is a deficient number, since it is larger than the sum of its proper divisors (157125769).

12313041031 is a wasteful number, since it uses less digits than its factorization.

12313041031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489729.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12313041031 its reverse (13014031321), we get a palindrome (25327072352).

The spelling of 12313041031 in words is "twelve billion, three hundred thirteen million, forty-one thousand, thirty-one".

Divisors: 1 139 181 25159 489409 68027851 88583029 12313041031