1313220032000 has 80 divisors (see below), whose sum is σ = 3274596385632. Its totient is φ = 525287987200.

The previous prime is 1313220031997. The next prime is 1313220032017. The reversal of 1313220032000 is 2300223131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1313220032000.

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, 10195532 + ... + 10323531.

Almost surely, 2^{1313220032000} is an apocalyptic number.

1313220032000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313220032000 is an abundant number, since it is smaller than the sum of its proper divisors (1961376353632).

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

1313220032000 is an frugal number, since it uses more digits than its factorization.

1313220032000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20519096 (or 20519070 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 1313220032000 its reverse (2300223131), we get a palindrome (1315520255131).

The spelling of 1313220032000 in words is "one trillion, three hundred thirteen billion, two hundred twenty million, thirty-two thousand".