1351330831400 has 72 divisors (see below), whose sum is σ = 3453432097710. Its totient is φ = 491393020800.

The previous prime is 1351330831397. The next prime is 1351330831439. The reversal of 1351330831400 is 41380331531.

It can be written as a sum of positive squares in 3 ways, for example, as 516998388676 + 834332442724 = 719026^2 + 913418^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27895859 + ... + 27944258.

Almost surely, 2^{1351330831400} is an apocalyptic number.

1351330831400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351330831400 is an abundant number, since it is smaller than the sum of its proper divisors (2102101266310).

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

1351330831400 is a wasteful number, since it uses less digits than its factorization.

1351330831400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55840155 (or 55840135 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 1351330831400 in words is "one trillion, three hundred fifty-one billion, three hundred thirty million, eight hundred thirty-one thousand, four hundred".