321311013101 has 4 divisors (see below), whose sum is σ = 346027244892. Its totient is φ = 296594781312.

The previous prime is 321311013061. The next prime is 321311013131. The reversal of 321311013101 is 101310113123.

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 188451492100 + 132859521001 = 434110^2 + 364499^2 .

It is a cyclic number.

It is not a de Polignac number, because 321311013101 - 2³⁴ = 304131143917 is a prime.

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 321311013101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321311013131) 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, 12358115876 + ... + 12358115901.

It is an arithmetic number, because the mean of its divisors is an integer number (86506811223).

Almost surely, 2^321311013101 is an apocalyptic number.

It is an amenable number.

321311013101 is a deficient number, since it is larger than the sum of its proper divisors (24716231791).

321311013101 is a wasteful number, since it uses less digits than its factorization.

321311013101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24716231790.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 321311013101 its reverse (101310113123), we get a palindrome (422621126224).

The spelling of 321311013101 in words is "three hundred twenty-one billion, three hundred eleven million, thirteen thousand, one hundred one".