1320031530432 has 84 divisors (see below), whose sum is σ = 3905684742336. Its totient is φ = 425816616960.

The previous prime is 1320031530409. The next prime is 1320031530439. The reversal of 1320031530432 is 2340351300231.

1320031530432 is a `hidden beast` number, since 1 + 320 + 0 + 3 + 1 + 5 + 304 + 32 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1320031530396 and 1320031530405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320031530439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36945393 + ... + 36981104.

Almost surely, 2^{1320031530432} is an apocalyptic number.

1320031530432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1320031530432 is an abundant number, since it is smaller than the sum of its proper divisors (2585653211904).

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

1320031530432 is a wasteful number, since it uses less digits than its factorization.

1320031530432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73926546 (or 73926533 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 1320031530432 its reverse (2340351300231), we get a palindrome (3660382830663).

The spelling of 1320031530432 in words is "one trillion, three hundred twenty billion, thirty-one million, five hundred thirty thousand, four hundred thirty-two".