31020031133023 has 24 divisors (see below), whose sum is σ = 32154497475408. Its totient is φ = 29909344727808.

The previous prime is 31020031132969. The next prime is 31020031133041. The reversal of 31020031133023 is 32033113002013.

It is not a de Polignac number, because 31020031133023 - 2⁹ = 31020031132511 is a prime.

It is a super-2 number, since 2×31020031133023² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31020031132985 and 31020031133003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020031137023) 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, 2210499015 + ... + 2210513047.

It is an arithmetic number, because the mean of its divisors is an integer number (1339770728142).

Almost surely, 2^{31020031133023} is an apocalyptic number.

31020031133023 is a deficient number, since it is larger than the sum of its proper divisors (1134466342385).

31020031133023 is an equidigital number, since it uses as much as digits as its factorization.

31020031133023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22471 (or 22392 counting only the distinct ones).

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

Adding to 31020031133023 its reverse (32033113002013), we get a palindrome (63053144135036).

The spelling of 31020031133023 in words is "thirty-one trillion, twenty billion, thirty-one million, one hundred thirty-three thousand, twenty-three".