31013012123 has 8 divisors (see below), whose sum is σ = 31428513600. Its totient is φ = 30599892288.

The previous prime is 31013012117. The next prime is 31013012137. The reversal of 31013012123 is 32121031013.

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 31013012123 - 2¹⁸ = 31012749979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31013012153) 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, 569186 + ... + 621287.

It is an arithmetic number, because the mean of its divisors is an integer number (3928564200).

Almost surely, 2^31013012123 is an apocalyptic number.

31013012123 is a deficient number, since it is larger than the sum of its proper divisors (415501477).

31013012123 is a wasteful number, since it uses less digits than its factorization.

31013012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190821.

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

Adding to 31013012123 its reverse (32121031013), we get a palindrome (63134043136).

The spelling of 31013012123 in words is "thirty-one billion, thirteen million, twelve thousand, one hundred twenty-three".