21023132010023 has 16 divisors (see below), whose sum is σ = 26151357962016. Its totient is φ = 16604036797440.

The previous prime is 21023132010017. The next prime is 21023132010131. The reversal of 21023132010023 is 32001023132012.

It is a cyclic number.

It is not a de Polignac number, because 21023132010023 - 2¹⁴ = 21023131993639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21023132009977 and 21023132010004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21023132010523) 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, 4323965486 + ... + 4323970347.

It is an arithmetic number, because the mean of its divisors is an integer number (1634459872626).

Almost surely, 2^{21023132010023} is an apocalyptic number.

21023132010023 is a deficient number, since it is larger than the sum of its proper divisors (5128225951993).

21023132010023 is a wasteful number, since it uses less digits than its factorization.

21023132010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8647935874.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21023132010023 its reverse (32001023132012), we get a palindrome (53024155142035).

The spelling of 21023132010023 in words is "twenty-one trillion, twenty-three billion, one hundred thirty-two million, ten thousand, twenty-three".