252112405321 has 24 divisors (see below), whose sum is σ = 306069425280. Its totient is φ = 206670606912.

The previous prime is 252112405309. The next prime is 252112405399. The reversal of 252112405321 is 123504211252.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-252112405321 is a prime.

It is a super-2 number, since 2×252112405321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252112405321.

It is not an unprimeable number, because it can be changed into a prime (252112405301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10941805 + ... + 10964821.

It is an arithmetic number, because the mean of its divisors is an integer number (12752892720).

Almost surely, 2^252112405321 is an apocalyptic number.

It is an amenable number.

252112405321 is a deficient number, since it is larger than the sum of its proper divisors (53957019959).

252112405321 is a wasteful number, since it uses less digits than its factorization.

252112405321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32773 (or 32766 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 252112405321 its reverse (123504211252), we get a palindrome (375616616573).

The spelling of 252112405321 in words is "two hundred fifty-two billion, one hundred twelve million, four hundred five thousand, three hundred twenty-one".