1316624421231 has 128 divisors (see below), whose sum is σ = 2281872384000. Its totient is φ = 734857194240.

The previous prime is 1316624421227. The next prime is 1316624421257. The reversal of 1316624421231 is 1321244266131.

1316624421231 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 624 + 4 + 2 + 1 + 23 + 1 = 666.

It is not a de Polignac number, because 1316624421231 - 2² = 1316624421227 is a prime.

It is a super-2 number, since 2×1316624421231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316624421631) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 431820195 + ... + 431823243.

It is an arithmetic number, because the mean of its divisors is an integer number (17827128000).

Almost surely, 2^{1316624421231} is an apocalyptic number.

1316624421231 is a deficient number, since it is larger than the sum of its proper divisors (965247962769).

1316624421231 is a wasteful number, since it uses less digits than its factorization.

1316624421231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466 (or 3460 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

Adding to 1316624421231 its reverse (1321244266131), we get a palindrome (2637868687362).

The spelling of 1316624421231 in words is "one trillion, three hundred sixteen billion, six hundred twenty-four million, four hundred twenty-one thousand, two hundred thirty-one".