1312220303232 has 64 divisors (see below), whose sum is σ = 3519425919360. Its totient is φ = 433160087040.

The previous prime is 1312220303213. The next prime is 1312220303243. The reversal of 1312220303232 is 2323030222131.

It is a tau number, because it is divible by the number of its divisors (64).

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

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, 16548994 + ... + 16628097.

It is an arithmetic number, because the mean of its divisors is an integer number (54991029990).

Almost surely, 2^{1312220303232} is an apocalyptic number.

1312220303232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312220303232 is an abundant number, since it is smaller than the sum of its proper divisors (2207205616128).

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

1312220303232 is a wasteful number, since it uses less digits than its factorization.

1312220303232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33177211 (or 33177199 counting only the distinct ones).

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

Adding to 1312220303232 its reverse (2323030222131), we get a palindrome (3635250525363).

The spelling of 1312220303232 in words is "one trillion, three hundred twelve billion, two hundred twenty million, three hundred three thousand, two hundred thirty-two".