1312233021120 has 112 divisors (see below), whose sum is σ = 4761531272448. Its totient is φ = 299938974720.

The previous prime is 1312233021119. The next prime is 1312233021137. The reversal of 1312233021120 is 211203322131.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97629666 + ... + 97643105.

Almost surely, 2^{1312233021120} is an apocalyptic number.

1312233021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312233021120 is an abundant number, since it is smaller than the sum of its proper divisors (3449298251328).

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

1312233021120 is a wasteful number, since it uses less digits than its factorization.

1312233021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195272798 (or 195272788 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1312233021120 its reverse (211203322131), we get a palindrome (1523436343251).

The spelling of 1312233021120 in words is "one trillion, three hundred twelve billion, two hundred thirty-three million, twenty-one thousand, one hundred twenty".