31040310401 has 2 divisors, whose sum is σ = 31040310402. Its totient is φ = 31040310400.

The previous prime is 31040310397. The next prime is 31040310409. The reversal of 31040310401 is 10401304013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29489132176 + 1551178225 = 171724^2 + 39385^2 .

It is a cyclic number.

It is not a de Polignac number, because 31040310401 - 2² = 31040310397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31040310401.

It is not a weakly prime, because it can be changed into another prime (31040310409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15520155200 + 15520155201.

It is an arithmetic number, because the mean of its divisors is an integer number (15520155201).

Almost surely, 2^31040310401 is an apocalyptic number.

It is an amenable number.

31040310401 is a deficient number, since it is larger than the sum of its proper divisors (1).

31040310401 is an equidigital number, since it uses as much as digits as its factorization.

31040310401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31040310401 its reverse (10401304013), we get a palindrome (41441614414).

The spelling of 31040310401 in words is "thirty-one billion, forty million, three hundred ten thousand, four hundred one".