12013231000031 has 8 divisors (see below), whose sum is σ = 12298721238144. Its totient is φ = 11728018615320.

The previous prime is 12013231000013. The next prime is 12013231000039. The reversal of 12013231000031 is 13000013231021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12013231000031 is a prime.

It is a super-2 number, since 2×12013231000031² (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 = 12013230999973 and 12013231000009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013231000039) 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, 69375851 + ... + 69548796.

It is an arithmetic number, because the mean of its divisors is an integer number (1537340154768).

Almost surely, 2^{12013231000031} is an apocalyptic number.

12013231000031 is a deficient number, since it is larger than the sum of its proper divisors (285490238113).

12013231000031 is a wasteful number, since it uses less digits than its factorization.

12013231000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138926701.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12013231000031 its reverse (13000013231021), we get a palindrome (25013244231052).

The spelling of 12013231000031 in words is "twelve trillion, thirteen billion, two hundred thirty-one million, thirty-one", and thus it is an aban number.