31100133320023 has 16 divisors (see below), whose sum is σ = 31485989437056. Its totient is φ = 30716155452640.

The previous prime is 31100133319951. The next prime is 31100133320029. The reversal of 31100133320023 is 32002333100113.

It is a cyclic number.

It is not a de Polignac number, because 31100133320023 - 2²¹ = 31100131222871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31100133319976 and 31100133320003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100133320029) 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 15 ways as a sum of consecutive naturals, for example, 57096240 + ... + 57638362.

It is an arithmetic number, because the mean of its divisors is an integer number (1967874339816).

Almost surely, 2^{31100133320023} is an apocalyptic number.

31100133320023 is a deficient number, since it is larger than the sum of its proper divisors (385856117033).

31100133320023 is a wasteful number, since it uses less digits than its factorization.

31100133320023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543854.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31100133320023 its reverse (32002333100113), we get a palindrome (63102466420136).

The spelling of 31100133320023 in words is "thirty-one trillion, one hundred billion, one hundred thirty-three million, three hundred twenty thousand, twenty-three".