31013144401 has 2 divisors, whose sum is σ = 31013144402. Its totient is φ = 31013144400.

The previous prime is 31013144381. The next prime is 31013144411. The reversal of 31013144401 is 10444131013.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16384000000 + 14629144401 = 128000^2 + 120951^2 .

It is a cyclic number.

It is not a de Polignac number, because 31013144401 - 2¹⁹ = 31012620113 is a prime.

It is not a weakly prime, because it can be changed into another prime (31013144411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15506572200 + 15506572201.

It is an arithmetic number, because the mean of its divisors is an integer number (15506572201).

Almost surely, 2^31013144401 is an apocalyptic number.

It is an amenable number.

31013144401 is a deficient number, since it is larger than the sum of its proper divisors (1).

31013144401 is an equidigital number, since it uses as much as digits as its factorization.

31013144401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 31013144401 its reverse (10444131013), we get a palindrome (41457275414).

The spelling of 31013144401 in words is "thirty-one billion, thirteen million, one hundred forty-four thousand, four hundred one".