1331031113460 has 72 divisors (see below), whose sum is σ = 4038226153416. Its totient is φ = 354874368000.

The previous prime is 1331031113411. The next prime is 1331031113473. The reversal of 1331031113460 is 643111301331.

1331031113460 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 0 + 311 + 1 + 346 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 658804942224 + 672226171236 = 811668^2 + 819894^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255460 + ... + 1651460.

It is an arithmetic number, because the mean of its divisors is an integer number (56086474353).

Almost surely, 2^{1331031113460} is an apocalyptic number.

1331031113460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331031113460 is an abundant number, since it is smaller than the sum of its proper divisors (2707195039956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331031113460 is a wasteful number, since it uses less digits than its factorization.

1331031113460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401313 (or 1401308 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 1331031113460 its reverse (643111301331), we get a palindrome (1974142414791).

The spelling of 1331031113460 in words is "one trillion, three hundred thirty-one billion, thirty-one million, one hundred thirteen thousand, four hundred sixty".