321525140112053 has 4 divisors (see below), whose sum is σ = 326974718758080. Its totient is φ = 316075561466028.

The previous prime is 321525140111971. The next prime is 321525140112161. The reversal of 321525140112053 is 350211041525123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321525140112053 - 2²² = 321525135917749 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 (321525140114053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2724789322925 + ... + 2724789323042.

It is an arithmetic number, because the mean of its divisors is an integer number (81743679689520).

Almost surely, 2^{321525140112053} is an apocalyptic number.

It is an amenable number.

321525140112053 is a deficient number, since it is larger than the sum of its proper divisors (5449578646027).

321525140112053 is an equidigital number, since it uses as much as digits as its factorization.

321525140112053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5449578646026.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 321525140112053 its reverse (350211041525123), we get a palindrome (671736181637176).

The spelling of 321525140112053 in words is "three hundred twenty-one trillion, five hundred twenty-five billion, one hundred forty million, one hundred twelve thousand, fifty-three".