20101311020331 has 32 divisors (see below), whose sum is σ = 29850052610880. Its totient is φ = 13369234526208.

The previous prime is 20101311020279. The next prime is 20101311020333. The reversal of 20101311020331 is 13302011310102.

20101311020331 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 1 + 311 + 0 + 20 + 331 = 666.

It is not a de Polignac number, because 20101311020331 - 2²³ = 20101302631723 is a prime.

It is a super-2 number, since 2×20101311020331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20101311020333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72624955 + ... + 72901211.

It is an arithmetic number, because the mean of its divisors is an integer number (932814144090).

Almost surely, 2^{20101311020331} is an apocalyptic number.

20101311020331 is a deficient number, since it is larger than the sum of its proper divisors (9748741590549).

20101311020331 is a wasteful number, since it uses less digits than its factorization.

20101311020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282620 (or 282614 counting only the distinct ones).

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

Adding to 20101311020331 its reverse (13302011310102), we get a palindrome (33403322330433).

The spelling of 20101311020331 in words is "twenty trillion, one hundred one billion, three hundred eleven million, twenty thousand, three hundred thirty-one".