133031113131 has 16 divisors (see below), whose sum is σ = 207428359424. Its totient is φ = 74249923104.

The previous prime is 133031113091. The next prime is 133031113133. The reversal of 133031113131 is 131311130331.

It is not a de Polignac number, because 133031113131 - 2²⁷ = 132896895403 is a prime.

It is a super-2 number, since 2×133031113131² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133031113098 and 133031113107.

It is not an unprimeable number, because it can be changed into a prime (133031113133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73659736 + ... + 73661541.

It is an arithmetic number, because the mean of its divisors is an integer number (12964272464).

Almost surely, 2^133031113131 is an apocalyptic number.

133031113131 is a deficient number, since it is larger than the sum of its proper divisors (74397246293).

133031113131 is a wasteful number, since it uses less digits than its factorization.

133031113131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147321330.

The product of its (nonzero) digits is 243, while the sum is 21.

Adding to 133031113131 its reverse (131311130331), we get a palindrome (264342243462).

The spelling of 133031113131 in words is "one hundred thirty-three billion, thirty-one million, one hundred thirteen thousand, one hundred thirty-one".