321012103223401 has 4 divisors (see below), whose sum is σ = 322785650755204. Its totient is φ = 319238555691600.

The previous prime is 321012103223363. The next prime is 321012103223411. The reversal of 321012103223401 is 104322301210123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 167493163867225 + 153518939356176 = 12941915^2 + 12390276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321012103223401 is a prime.

It is a super-2 number, since 2×321012103223401² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321012103223411) 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, 886773765630 + ... + 886773765991.

It is an arithmetic number, because the mean of its divisors is an integer number (80696412688801).

Almost surely, 2^{321012103223401} is an apocalyptic number.

It is an amenable number.

321012103223401 is a deficient number, since it is larger than the sum of its proper divisors (1773547531803).

321012103223401 is a wasteful number, since it uses less digits than its factorization.

321012103223401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773547531802.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 321012103223401 its reverse (104322301210123), we get a palindrome (425334404433524).

The spelling of 321012103223401 in words is "three hundred twenty-one trillion, twelve billion, one hundred three million, two hundred twenty-three thousand, four hundred one".