120311314731 has 12 divisors (see below), whose sum is σ = 174051616752. Its totient is φ = 80083570896.

The previous prime is 120311314709. The next prime is 120311314733. The reversal of 120311314731 is 137413113021.

120311314731 is a `hidden beast` number, since 1 + 2 + 0 + 311 + 314 + 7 + 31 = 666.

It is not a de Polignac number, because 120311314731 - 2¹¹ = 120311312683 is a prime.

It is a super-2 number, since 2×120311314731² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120311314695 and 120311314704.

It is not an unprimeable number, because it can be changed into a prime (120311314733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10324876 + ... + 10336521.

It is an arithmetic number, because the mean of its divisors is an integer number (14504301396).

Almost surely, 2^120311314731 is an apocalyptic number.

120311314731 is a deficient number, since it is larger than the sum of its proper divisors (53740302021).

120311314731 is a wasteful number, since it uses less digits than its factorization.

120311314731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20662050 (or 20662047 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

Adding to 120311314731 its reverse (137413113021), we get a palindrome (257724427752).

The spelling of 120311314731 in words is "one hundred twenty billion, three hundred eleven million, three hundred fourteen thousand, seven hundred thirty-one".