123033230231251 has 2 divisors, whose sum is σ = 123033230231252. Its totient is φ = 123033230231250.

The previous prime is 123033230231231. The next prime is 123033230231257. The reversal of 123033230231251 is 152132032330321.

It is a strong prime.

It is an emirp because it is prime and its reverse (152132032330321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123033230231251 is a prime.

It is a super-2 number, since 2×123033230231251² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123033230231257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61516615115625 + 61516615115626.

It is an arithmetic number, because the mean of its divisors is an integer number (61516615115626).

Almost surely, 2^{123033230231251} is an apocalyptic number.

123033230231251 is a deficient number, since it is larger than the sum of its proper divisors (1).

123033230231251 is an equidigital number, since it uses as much as digits as its factorization.

123033230231251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 123033230231251 its reverse (152132032330321), we get a palindrome (275165262561572).

The spelling of 123033230231251 in words is "one hundred twenty-three trillion, thirty-three billion, two hundred thirty million, two hundred thirty-one thousand, two hundred fifty-one".