31013300121 has 8 divisors (see below), whose sum is σ = 41378082144. Its totient is φ = 20662025760.

The previous prime is 31013300083. The next prime is 31013300161. The reversal of 31013300121 is 12100331013.

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

It is not a de Polignac number, because 31013300121 - 2⁹ = 31013299609 is a prime.

It is a super-2 number, since 2×31013300121² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31013300121.

It is not an unprimeable number, because it can be changed into a prime (31013300161) 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, 3371556 + ... + 3380741.

It is an arithmetic number, because the mean of its divisors is an integer number (5172260268).

Almost surely, 2^31013300121 is an apocalyptic number.

It is an amenable number.

31013300121 is a deficient number, since it is larger than the sum of its proper divisors (10364782023).

31013300121 is a wasteful number, since it uses less digits than its factorization.

31013300121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6753831.

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

Adding to 31013300121 its reverse (12100331013), we get a palindrome (43113631134).

The spelling of 31013300121 in words is "thirty-one billion, thirteen million, three hundred thousand, one hundred twenty-one".