133023312131 has 16 divisors (see below), whose sum is σ = 136620000000. Its totient is φ = 129473146656.

The previous prime is 133023312119. The next prime is 133023312193. The reversal of 133023312131 is 131213320331.

It is a cyclic number.

It is not a de Polignac number, because 133023312131 - 2²⁶ = 132956203267 is a prime.

It is a super-2 number, since 2×133023312131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133023312097 and 133023312106.

It is not an unprimeable number, because it can be changed into a prime (133023312431) 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, 9633170 + ... + 9646968.

It is an arithmetic number, because the mean of its divisors is an integer number (8538750000).

Almost surely, 2^133023312131 is an apocalyptic number.

133023312131 is a deficient number, since it is larger than the sum of its proper divisors (3596687869).

133023312131 is a wasteful number, since it uses less digits than its factorization.

133023312131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15466.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 133023312131 its reverse (131213320331), we get a palindrome (264236632462).

The spelling of 133023312131 in words is "one hundred thirty-three billion, twenty-three million, three hundred twelve thousand, one hundred thirty-one".