133331024231 has 2 divisors, whose sum is σ = 133331024232. Its totient is φ = 133331024230.

The previous prime is 133331024221. The next prime is 133331024243. The reversal of 133331024231 is 132420133331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133331024231 - 2²² = 133326829927 is a prime.

It is a super-2 number, since 2×133331024231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133331024231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133331024221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66665512115 + 66665512116.

It is an arithmetic number, because the mean of its divisors is an integer number (66665512116).

Almost surely, 2^133331024231 is an apocalyptic number.

133331024231 is a deficient number, since it is larger than the sum of its proper divisors (1).

133331024231 is an equidigital number, since it uses as much as digits as its factorization.

133331024231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 133331024231 its reverse (132420133331), we get a palindrome (265751157562).

The spelling of 133331024231 in words is "one hundred thirty-three billion, three hundred thirty-one million, twenty-four thousand, two hundred thirty-one".