311201120000 has 90 divisors (see below), whose sum is σ = 776235187728. Its totient is φ = 124480384000.

The previous prime is 311201119973. The next prime is 311201120011. The reversal of 311201120000 is 21102113.

It is a super-2 number, since 2×311201120000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 812504 + ... + 1132503.

Almost surely, 2^311201120000 is an apocalyptic number.

It is an amenable number.

311201120000 is an abundant number, since it is smaller than the sum of its proper divisors (465034067728).

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

311201120000 is an frugal number, since it uses more digits than its factorization.

311201120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945043 (or 1945014 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 311201120000 its reverse (21102113), we get a palindrome (311222222113).

The spelling of 311201120000 in words is "three hundred eleven billion, two hundred one million, one hundred twenty thousand".