31044424121 has 16 divisors (see below), whose sum is σ = 33060182400. Its totient is φ = 29068316928.

The previous prime is 31044424109. The next prime is 31044424153. The reversal of 31044424121 is 12142444013.

It is a cyclic number.

It is not a de Polignac number, because 31044424121 - 2⁶ = 31044424057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31044427121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 750635 + ... + 790911.

It is an arithmetic number, because the mean of its divisors is an integer number (2066261400).

Almost surely, 2^31044424121 is an apocalyptic number.

It is an amenable number.

31044424121 is a deficient number, since it is larger than the sum of its proper divisors (2015758279).

31044424121 is a wasteful number, since it uses less digits than its factorization.

31044424121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40768.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 31044424121 its reverse (12142444013), we get a palindrome (43186868134).

The spelling of 31044424121 in words is "thirty-one billion, forty-four million, four hundred twenty-four thousand, one hundred twenty-one".