252645331123 has 2 divisors, whose sum is σ = 252645331124. Its totient is φ = 252645331122.

The previous prime is 252645331117. The next prime is 252645331177. The reversal of 252645331123 is 321133546252.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252645331123 is a prime.

It is a super-2 number, since 2×252645331123² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (252645361123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126322665561 + 126322665562.

It is an arithmetic number, because the mean of its divisors is an integer number (126322665562).

Almost surely, 2^252645331123 is an apocalyptic number.

252645331123 is a deficient number, since it is larger than the sum of its proper divisors (1).

252645331123 is an equidigital number, since it uses as much as digits as its factorization.

252645331123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 37.

Adding to 252645331123 its reverse (321133546252), we get a palindrome (573778877375).

The spelling of 252645331123 in words is "two hundred fifty-two billion, six hundred forty-five million, three hundred thirty-one thousand, one hundred twenty-three".