120311201312 has 12 divisors (see below), whose sum is σ = 236862677646. Its totient is φ = 60155600640.

The previous prime is 120311201303. The next prime is 120311201341. The reversal of 120311201312 is 213102113021.

It can be written as a sum of positive squares in only one way, i.e., 79521744016 + 40789457296 = 281996^2 + 201964^2 .

It is a super-2 number, since 2×120311201312² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1879862489 + ... + 1879862552.

Almost surely, 2^120311201312 is an apocalyptic number.

It is an amenable number.

120311201312 is a deficient number, since it is larger than the sum of its proper divisors (116551476334).

120311201312 is an equidigital number, since it uses as much as digits as its factorization.

120311201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759725051 (or 3759725043 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 120311201312 its reverse (213102113021), we get a palindrome (333413314333).

The spelling of 120311201312 in words is "one hundred twenty billion, three hundred eleven million, two hundred one thousand, three hundred twelve".