31400020124401 has 2 divisors, whose sum is σ = 31400020124402. Its totient is φ = 31400020124400.

The previous prime is 31400020124359. The next prime is 31400020124483. The reversal of 31400020124401 is 10442102000413.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17958821706225 + 13441198418176 = 4237785^2 + 3666224^2 .

It is a cyclic number.

It is not a de Polignac number, because 31400020124401 - 2¹⁵ = 31400020091633 is a prime.

It is a super-2 number, since 2×31400020124401² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31400020824401) 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 as a sum of consecutive naturals, namely, 15700010062200 + 15700010062201.

It is an arithmetic number, because the mean of its divisors is an integer number (15700010062201).

Almost surely, 2^{31400020124401} is an apocalyptic number.

It is an amenable number.

31400020124401 is a deficient number, since it is larger than the sum of its proper divisors (1).

31400020124401 is an equidigital number, since it uses as much as digits as its factorization.

31400020124401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 31400020124401 its reverse (10442102000413), we get a palindrome (41842122124814).

The spelling of 31400020124401 in words is "thirty-one trillion, four hundred billion, twenty million, one hundred twenty-four thousand, four hundred one".