31013030000121 has 8 divisors (see below), whose sum is σ = 44531530256640. Its totient is φ = 19084941538512.

The previous prime is 31013030000119. The next prime is 31013030000189. The reversal of 31013030000121 is 12100003031013.

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

It is not a de Polignac number, because 31013030000121 - 2¹ = 31013030000119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31013030000121.

It is not an unprimeable number, because it can be changed into a prime (31013030000101) 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, 397602948681 + ... + 397602948758.

It is an arithmetic number, because the mean of its divisors is an integer number (5566441282080).

Almost surely, 2^{31013030000121} is an apocalyptic number.

It is an amenable number.

31013030000121 is a deficient number, since it is larger than the sum of its proper divisors (13518500256519).

31013030000121 is a wasteful number, since it uses less digits than its factorization.

31013030000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795205897455.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31013030000121 its reverse (12100003031013), we get a palindrome (43113033031134).

The spelling of 31013030000121 in words is "thirty-one trillion, thirteen billion, thirty million, one hundred twenty-one", and thus it is an aban number.