1331023232400 has 120 divisors (see below), whose sum is σ = 4264110052704. Its totient is φ = 354906316800.

The previous prime is 1331023232359. The next prime is 1331023232401. The reversal of 1331023232400 is 42323201331.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1331023232401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14470555 + ... + 14562245.

Almost surely, 2^{1331023232400} is an apocalyptic number.

1331023232400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331023232400 is an abundant number, since it is smaller than the sum of its proper divisors (2933086820304).

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

1331023232400 is a wasteful number, since it uses less digits than its factorization.

1331023232400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103809 (or 103798 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 1331023232400 its reverse (42323201331), we get a palindrome (1373346433731).

The spelling of 1331023232400 in words is "one trillion, three hundred thirty-one billion, twenty-three million, two hundred thirty-two thousand, four hundred".