231550502123133 has 32 divisors (see below), whose sum is σ = 366960973720320. Its totient is φ = 143788789647360.

The previous prime is 231550502123113. The next prime is 231550502123153. The reversal of 231550502123133 is 331321205055132.

231550502123133 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 5 + 0 + 502 + 12 + 3 + 133 = 666.

It is an interprime number because it is at equal distance from previous prime (231550502123113) and next prime (231550502123153).

It is not a de Polignac number, because 231550502123133 - 2¹² = 231550502119037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231550502123113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2600302513 + ... + 2600391558.

It is an arithmetic number, because the mean of its divisors is an integer number (11467530428760).

Almost surely, 2^{231550502123133} is an apocalyptic number.

It is an amenable number.

231550502123133 is a deficient number, since it is larger than the sum of its proper divisors (135410471597187).

231550502123133 is a wasteful number, since it uses less digits than its factorization.

231550502123133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5200694194 (or 5200694188 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 231550502123133 its reverse (331321205055132), we get a palindrome (562871707178265).

The spelling of 231550502123133 in words is "two hundred thirty-one trillion, five hundred fifty billion, five hundred two million, one hundred twenty-three thousand, one hundred thirty-three".