31313530401 has 16 divisors (see below), whose sum is σ = 41969009088. Its totient is φ = 20767140800.

The previous prime is 31313530387. The next prime is 31313530403. The reversal of 31313530401 is 10403531313.

It is a cyclic number.

It is not a de Polignac number, because 31313530401 - 2¹⁴ = 31313514017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31313530403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433411 + ... + 500471.

It is an arithmetic number, because the mean of its divisors is an integer number (2623063068).

Almost surely, 2^31313530401 is an apocalyptic number.

It is an amenable number.

31313530401 is a deficient number, since it is larger than the sum of its proper divisors (10655478687).

31313530401 is a wasteful number, since it uses less digits than its factorization.

31313530401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67872.

The product of its (nonzero) digits is 1620, while the sum is 24.

The spelling of 31313530401 in words is "thirty-one billion, three hundred thirteen million, five hundred thirty thousand, four hundred one".