120312311132 has 24 divisors (see below), whose sum is σ = 232015516656. Its totient is φ = 54237391488.

The previous prime is 120312311069. The next prime is 120312311137. The reversal of 120312311132 is 231113213021.

It is a happy number.

It is a super-2 number, since 2×120312311132² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120312311137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26901233 + ... + 26905704.

It is an arithmetic number, because the mean of its divisors is an integer number (9667313194).

Almost surely, 2^120312311132 is an apocalyptic number.

It is an amenable number.

120312311132 is a deficient number, since it is larger than the sum of its proper divisors (111703205524).

120312311132 is a wasteful number, since it uses less digits than its factorization.

120312311132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53806997 (or 53806995 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 120312311132 its reverse (231113213021), we get a palindrome (351425524153).

The spelling of 120312311132 in words is "one hundred twenty billion, three hundred twelve million, three hundred eleven thousand, one hundred thirty-two".