123313010321221 has 32 divisors (see below), whose sum is σ = 149171456645120. Its totient is φ = 99577052827200.

The previous prime is 123313010321063. The next prime is 123313010321419. The reversal of 123313010321221 is 122123010313321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123313010321221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123313010324221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816745480 + ... + 816896446.

It is an arithmetic number, because the mean of its divisors is an integer number (4661608020160).

Almost surely, 2^{123313010321221} is an apocalyptic number.

It is an amenable number.

123313010321221 is a deficient number, since it is larger than the sum of its proper divisors (25858446323899).

123313010321221 is a wasteful number, since it uses less digits than its factorization.

123313010321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185105.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 123313010321221 its reverse (122123010313321), we get a palindrome (245436020634542).

The spelling of 123313010321221 in words is "one hundred twenty-three trillion, three hundred thirteen billion, ten million, three hundred twenty-one thousand, two hundred twenty-one".