31312523311401 has 8 divisors (see below), whose sum is σ = 41750060322240. Its totient is φ = 20875000920752.

The previous prime is 31312523311387. The next prime is 31312523311463. The reversal of 31312523311401 is 10411332521313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31312523311401 - 2¹⁵ = 31312523278633 is a prime.

It is a super-2 number, since 2×31312523311401² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31312523311001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3154915 + ... + 8519303.

It is an arithmetic number, because the mean of its divisors is an integer number (5218757540280).

Almost surely, 2^{31312523311401} is an apocalyptic number.

It is an amenable number.

31312523311401 is a deficient number, since it is larger than the sum of its proper divisors (10437537010839).

31312523311401 is a wasteful number, since it uses less digits than its factorization.

31312523311401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7310095.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 31312523311401 its reverse (10411332521313), we get a palindrome (41723855832714).

The spelling of 31312523311401 in words is "thirty-one trillion, three hundred twelve billion, five hundred twenty-three million, three hundred eleven thousand, four hundred one".