1331040400120 has 32 divisors (see below), whose sum is σ = 3004409110320. Its totient is φ = 530715144960.

The previous prime is 1331040400037. The next prime is 1331040400133. The reversal of 1331040400120 is 210040401331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53144046 + ... + 53169085.

Almost surely, 2^{1331040400120} is an apocalyptic number.

1331040400120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331040400120 is an abundant number, since it is smaller than the sum of its proper divisors (1673368710200).

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

1331040400120 is a wasteful number, since it uses less digits than its factorization.

1331040400120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106313455 (or 106313451 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1331040400120 its reverse (210040401331), we get a palindrome (1541080801451).

The spelling of 1331040400120 in words is "one trillion, three hundred thirty-one billion, forty million, four hundred thousand, one hundred twenty".