31401414442021 has 16 divisors (see below), whose sum is σ = 33879710269440. Its totient is φ = 28932100536960.

The previous prime is 31401414442001. The next prime is 31401414442049. The reversal of 31401414442021 is 12024441410413.

It is a cyclic number.

It is not a de Polignac number, because 31401414442021 - 2⁵ = 31401414441989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31401414442001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76005276 + ... + 76417306.

It is an arithmetic number, because the mean of its divisors is an integer number (2117481891840).

Almost surely, 2^{31401414442021} is an apocalyptic number.

It is an amenable number.

31401414442021 is a deficient number, since it is larger than the sum of its proper divisors (2478295827419).

31401414442021 is a wasteful number, since it uses less digits than its factorization.

31401414442021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422916.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 31401414442021 its reverse (12024441410413), we get a palindrome (43425855852434).

The spelling of 31401414442021 in words is "thirty-one trillion, four hundred one billion, four hundred fourteen million, four hundred forty-two thousand, twenty-one".