31341344401 has 2 divisors, whose sum is σ = 31341344402. Its totient is φ = 31341344400.

The previous prime is 31341344399. The next prime is 31341344467. The reversal of 31341344401 is 10444314313.

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., 25531246225 + 5810098176 = 159785^2 + 76224^2 .

It is a cyclic number.

It is not a de Polignac number, because 31341344401 - 2¹ = 31341344399 is a prime.

Together with 31341344399, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 31341344401.

It is not a weakly prime, because it can be changed into another prime (31341344101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15670672200 + 15670672201.

It is an arithmetic number, because the mean of its divisors is an integer number (15670672201).

Almost surely, 2^31341344401 is an apocalyptic number.

It is an amenable number.

31341344401 is a deficient number, since it is larger than the sum of its proper divisors (1).

31341344401 is an equidigital number, since it uses as much as digits as its factorization.

31341344401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31341344401 its reverse (10444314313), we get a palindrome (41785658714).

The spelling of 31341344401 in words is "thirty-one billion, three hundred forty-one million, three hundred forty-four thousand, four hundred one".