31043131013401 has 16 divisors (see below), whose sum is σ = 34042604097600. Its totient is φ = 28132303969728.

The previous prime is 31043131013371. The next prime is 31043131013467. The reversal of 31043131013401 is 10431013134013.

It is a cyclic number.

It is not a de Polignac number, because 31043131013401 - 2²¹ = 31043128916249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31043171013401) 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, 26152171 + ... + 27313408.

It is an arithmetic number, because the mean of its divisors is an integer number (2127662756100).

Almost surely, 2^{31043131013401} is an apocalyptic number.

It is an amenable number.

31043131013401 is a deficient number, since it is larger than the sum of its proper divisors (2999473084199).

31043131013401 is a wasteful number, since it uses less digits than its factorization.

31043131013401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53466408.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31043131013401 its reverse (10431013134013), we get a palindrome (41474144147414).

The spelling of 31043131013401 in words is "thirty-one trillion, forty-three billion, one hundred thirty-one million, thirteen thousand, four hundred one".