123203011332021 has 16 divisors (see below), whose sum is σ = 168093089609280. Its totient is φ = 80224186049280.

The previous prime is 123203011331993. The next prime is 123203011332113. The reversal of 123203011332021 is 120233110302321.

It is not a de Polignac number, because 123203011332021 - 2⁵ = 123203011331989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123203011331982 and 123203011332000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123203011332721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4010445 + ... + 16201533.

It is an arithmetic number, because the mean of its divisors is an integer number (10505818100580).

Almost surely, 2^{123203011332021} is an apocalyptic number.

It is an amenable number.

123203011332021 is a deficient number, since it is larger than the sum of its proper divisors (44890078277259).

123203011332021 is a wasteful number, since it uses less digits than its factorization.

123203011332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12269476.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 123203011332021 its reverse (120233110302321), we get a palindrome (243436121634342).

The spelling of 123203011332021 in words is "one hundred twenty-three trillion, two hundred three billion, eleven million, three hundred thirty-two thousand, twenty-one".