123113302020221 has 4 divisors (see below), whose sum is σ = 123189912664032. Its totient is φ = 123036691376412.

The previous prime is 123113302020167. The next prime is 123113302020223. The reversal of 123113302020221 is 122020203311321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123113302020221 - 2¹⁸ = 123113301758077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123113302020223) 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, 38305319495 + ... + 38305322708.

It is an arithmetic number, because the mean of its divisors is an integer number (30797478166008).

Almost surely, 2^{123113302020221} is an apocalyptic number.

It is an amenable number.

123113302020221 is a deficient number, since it is larger than the sum of its proper divisors (76610643811).

123113302020221 is an equidigital number, since it uses as much as digits as its factorization.

123113302020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76610643810.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 123113302020221 its reverse (122020203311321), we get a palindrome (245133505331542).

The spelling of 123113302020221 in words is "one hundred twenty-three trillion, one hundred thirteen billion, three hundred two million, twenty thousand, two hundred twenty-one".