31253444350401 has 16 divisors (see below), whose sum is σ = 51287703549824. Its totient is φ = 16485333283584.

The previous prime is 31253444350379. The next prime is 31253444350411. The reversal of 31253444350401 is 10405344435213.

It is not a de Polignac number, because 31253444350401 - 2⁹ = 31253444349889 is a prime.

It is a super-2 number, since 2×31253444350401² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 31253444350401.

It is not an unprimeable number, because it can be changed into a prime (31253444350411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57240740296 + ... + 57240740841.

It is an arithmetic number, because the mean of its divisors is an integer number (3205481471864).

Almost surely, 2^{31253444350401} is an apocalyptic number.

It is an amenable number.

31253444350401 is a deficient number, since it is larger than the sum of its proper divisors (20034259199423).

31253444350401 is a wasteful number, since it uses less digits than its factorization.

31253444350401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114481481160.

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 31253444350401 its reverse (10405344435213), we get a palindrome (41658788785614).

The spelling of 31253444350401 in words is "thirty-one trillion, two hundred fifty-three billion, four hundred forty-four million, three hundred fifty thousand, four hundred one".