133111031131 has 8 divisors (see below), whose sum is σ = 143359829424. Its totient is φ = 122863588320.

The previous prime is 133111031077. The next prime is 133111031147. The reversal of 133111031131 is 131130111331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133111031131 is a prime.

It is a super-2 number, since 2×133111031131² (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 = 133111031099 and 133111031108.

It is not an unprimeable number, because it can be changed into a prime (133111031831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130141 + ... + 532126.

It is an arithmetic number, because the mean of its divisors is an integer number (17919978678).

Almost surely, 2^133111031131 is an apocalyptic number.

133111031131 is a deficient number, since it is larger than the sum of its proper divisors (10248798293).

133111031131 is a wasteful number, since it uses less digits than its factorization.

133111031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677741.

The product of its (nonzero) digits is 81, while the sum is 19.

Adding to 133111031131 its reverse (131130111331), we get a palindrome (264241142462).

The spelling of 133111031131 in words is "one hundred thirty-three billion, one hundred eleven million, thirty-one thousand, one hundred thirty-one".