252123512551023 has 64 divisors (see below), whose sum is σ = 356636172800000. Its totient is φ = 157990468356864.

The previous prime is 252123512551021. The next prime is 252123512551033. The reversal of 252123512551023 is 320155215321252.

It is not a de Polignac number, because 252123512551023 - 2¹ = 252123512551021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252123512551021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8807178636 + ... + 8807207262.

It is an arithmetic number, because the mean of its divisors is an integer number (5572440200000).

Almost surely, 2^{252123512551023} is an apocalyptic number.

252123512551023 is a deficient number, since it is larger than the sum of its proper divisors (104512660248977).

252123512551023 is a wasteful number, since it uses less digits than its factorization.

252123512551023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31004.

The product of its (nonzero) digits is 180000, while the sum is 39.

Adding to 252123512551023 its reverse (320155215321252), we get a palindrome (572278727872275).

The spelling of 252123512551023 in words is "two hundred fifty-two trillion, one hundred twenty-three billion, five hundred twelve million, five hundred fifty-one thousand, twenty-three".