121331232023 has 16 divisors (see below), whose sum is σ = 132139144800. Its totient is φ = 110966607360.

The previous prime is 121331231999. The next prime is 121331232089. The reversal of 121331232023 is 320232133121.

It is a cyclic number.

It is not a de Polignac number, because 121331232023 - 2¹⁴ = 121331215639 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 121331232023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121331232623) 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, 6996203 + ... + 7013523.

It is an arithmetic number, because the mean of its divisors is an integer number (8258696550).

Almost surely, 2^121331232023 is an apocalyptic number.

121331232023 is a deficient number, since it is larger than the sum of its proper divisors (10807912777).

121331232023 is a wasteful number, since it uses less digits than its factorization.

121331232023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30082.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 121331232023 its reverse (320232133121), we get a palindrome (441563365144).

The spelling of 121331232023 in words is "one hundred twenty-one billion, three hundred thirty-one million, two hundred thirty-two thousand, twenty-three".