31012023013 has 8 divisors (see below), whose sum is σ = 31273192800. Its totient is φ = 30751659120.

The previous prime is 31012022989. The next prime is 31012023017. The reversal of 31012023013 is 31032021013.

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 31012023013 - 2²¹ = 31009925861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012023017) 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, 124063 + ... + 278236.

It is an arithmetic number, because the mean of its divisors is an integer number (3909149100).

Almost surely, 2^31012023013 is an apocalyptic number.

It is an amenable number.

31012023013 is a deficient number, since it is larger than the sum of its proper divisors (261169787).

31012023013 is a wasteful number, since it uses less digits than its factorization.

31012023013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402947.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31012023013 its reverse (31032021013), we get a palindrome (62044044026).

The spelling of 31012023013 in words is "thirty-one billion, twelve million, twenty-three thousand, thirteen".