523314110320321 has 2 divisors, whose sum is σ = 523314110320322. Its totient is φ = 523314110320320.

The previous prime is 523314110320291. The next prime is 523314110320387. The reversal of 523314110320321 is 123023011413325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 523282140880321 + 31969440000 = 22875361^2 + 178800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523314110320321 is a prime.

It is a super-2 number, since 2×523314110320321² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (523314110320621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261657055160160 + 261657055160161.

It is an arithmetic number, because the mean of its divisors is an integer number (261657055160161).

Almost surely, 2^{523314110320321} is an apocalyptic number.

It is an amenable number.

523314110320321 is a deficient number, since it is larger than the sum of its proper divisors (1).

523314110320321 is an equidigital number, since it uses as much as digits as its factorization.

523314110320321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 523314110320321 its reverse (123023011413325), we get a palindrome (646337121733646).

The spelling of 523314110320321 in words is "five hundred twenty-three trillion, three hundred fourteen billion, one hundred ten million, three hundred twenty thousand, three hundred twenty-one".