2121020023023 has 80 divisors (see below), whose sum is σ = 3522526862976. Its totient is φ = 1266271950240.

The previous prime is 2121020022997. The next prime is 2121020023081. The reversal of 2121020023023 is 3203200201212.

2121020023023 is a `hidden beast` number, since 2 + 1 + 210 + 200 + 230 + 23 = 666.

It is not a de Polignac number, because 2121020023023 - 2¹³ = 2121020014831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2121020022987 and 2121020023005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121020021023) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14433265 + ... + 14579477.

Almost surely, 2^{2121020023023} is an apocalyptic number.

2121020023023 is a deficient number, since it is larger than the sum of its proper divisors (1401506839953).

2121020023023 is an frugal number, since it uses more digits than its factorization.

2121020023023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146318 (or 146294 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2121020023023 its reverse (3203200201212), we get a palindrome (5324220224235).

The spelling of 2121020023023 in words is "two trillion, one hundred twenty-one billion, twenty million, twenty-three thousand, twenty-three".