2121020132023 has 24 divisors (see below), whose sum is σ = 2432949329888. Its totient is φ = 1837754804736.

The previous prime is 2121020131913. The next prime is 2121020132039. The reversal of 2121020132023 is 3202310201212.

It is not a de Polignac number, because 2121020132023 - 2²⁹ = 2120483261111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121020132093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 644590 + ... + 2158132.

Almost surely, 2^{2121020132023} is an apocalyptic number.

2121020132023 is a deficient number, since it is larger than the sum of its proper divisors (311929197865).

2121020132023 is a wasteful number, since it uses less digits than its factorization.

2121020132023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513963 (or 1513946 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2121020132023 its reverse (3202310201212), we get a palindrome (5323330333235).

The spelling of 2121020132023 in words is "two trillion, one hundred twenty-one billion, twenty million, one hundred thirty-two thousand, twenty-three".