31120020133011 has 24 divisors (see below), whose sum is σ = 45725975792640. Its totient is φ = 20390474378736.

The previous prime is 31120020132997. The next prime is 31120020133019. The reversal of 31120020133011 is 11033102002113.

31120020133011 is a `hidden beast` number, since 3 + 1 + 120 + 0 + 201 + 330 + 11 = 666.

It is not a de Polignac number, because 31120020133011 - 2¹⁹ = 31120019608723 is a prime.

It is a super-2 number, since 2×31120020133011² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31120020133019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58515075 + ... + 59044508.

It is an arithmetic number, because the mean of its divisors is an integer number (1905248991360).

Almost surely, 2^{31120020133011} is an apocalyptic number.

31120020133011 is a deficient number, since it is larger than the sum of its proper divisors (14605955659629).

31120020133011 is a wasteful number, since it uses less digits than its factorization.

31120020133011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117560095 (or 117560092 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 31120020133011 its reverse (11033102002113), we get a palindrome (42153122135124).

The spelling of 31120020133011 in words is "thirty-one trillion, one hundred twenty billion, twenty million, one hundred thirty-three thousand, eleven".