123010001323221 has 64 divisors (see below), whose sum is σ = 176801624064000. Its totient is φ = 75842879952384.

The previous prime is 123010001323219. The next prime is 123010001323249. The reversal of 123010001323221 is 122323100010321.

It is not a de Polignac number, because 123010001323221 - 2¹ = 123010001323219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123010001333221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 835234636 + ... + 835381898.

It is an arithmetic number, because the mean of its divisors is an integer number (2762525376000).

Almost surely, 2^{123010001323221} is an apocalyptic number.

It is an amenable number.

123010001323221 is a deficient number, since it is larger than the sum of its proper divisors (53791622740779).

123010001323221 is a wasteful number, since it uses less digits than its factorization.

123010001323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149410.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123010001323221 its reverse (122323100010321), we get a palindrome (245333101333542).

The spelling of 123010001323221 in words is "one hundred twenty-three trillion, ten billion, one million, three hundred twenty-three thousand, two hundred twenty-one".