321400524055001 has 2 divisors, whose sum is σ = 321400524055002. Its totient is φ = 321400524055000.

The previous prime is 321400524054991. The next prime is 321400524055003. The reversal of 321400524055001 is 100550425004123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275475180528025 + 45925343526976 = 16597445^2 + 6776824^2 .

It is a cyclic number.

It is not a de Polignac number, because 321400524055001 - 2²² = 321400519860697 is a prime.

It is a super-2 number, since 2×321400524055001² (a number of 30 digits) contains 22 as substring.

Together with 321400524055003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (321400524055003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160700262027500 + 160700262027501.

It is an arithmetic number, because the mean of its divisors is an integer number (160700262027501).

Almost surely, 2^{321400524055001} is an apocalyptic number.

It is an amenable number.

321400524055001 is a deficient number, since it is larger than the sum of its proper divisors (1).

321400524055001 is an equidigital number, since it uses as much as digits as its factorization.

321400524055001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 321400524055001 its reverse (100550425004123), we get a palindrome (421950949059124).

The spelling of 321400524055001 in words is "three hundred twenty-one trillion, four hundred billion, five hundred twenty-four million, fifty-five thousand, one".