133031120111231 has 16 divisors (see below), whose sum is σ = 145661279581440. Its totient is φ = 120949329584640.

The previous prime is 133031120111203. The next prime is 133031120111237. The reversal of 133031120111231 is 132111021130331.

It is a cyclic number.

It is not a de Polignac number, because 133031120111231 - 2⁶ = 133031120111167 is a prime.

It is a super-2 number, since 2×133031120111231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133031120111197 and 133031120111206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133031120111237) 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, 226305176 + ... + 226892253.

It is an arithmetic number, because the mean of its divisors is an integer number (9103829973840).

Almost surely, 2^{133031120111231} is an apocalyptic number.

133031120111231 is a deficient number, since it is larger than the sum of its proper divisors (12630159470209).

133031120111231 is a wasteful number, since it uses less digits than its factorization.

133031120111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453198034.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 133031120111231 its reverse (132111021130331), we get a palindrome (265142141241562).

The spelling of 133031120111231 in words is "one hundred thirty-three trillion, thirty-one billion, one hundred twenty million, one hundred eleven thousand, two hundred thirty-one".