21122310012023 has 16 divisors (see below), whose sum is σ = 23370255447552. Its totient is φ = 18929061060000.

The previous prime is 21122310012017. The next prime is 21122310012043. The reversal of 21122310012023 is 32021001322112.

It is a cyclic number.

It is not a de Polignac number, because 21122310012023 - 2¹⁶ = 21122309946487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21122310011986 and 21122310012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122310012043) 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, 3882998 + ... + 7571148.

It is an arithmetic number, because the mean of its divisors is an integer number (1460640965472).

Almost surely, 2^{21122310012023} is an apocalyptic number.

21122310012023 is a deficient number, since it is larger than the sum of its proper divisors (2247945435529).

21122310012023 is a wasteful number, since it uses less digits than its factorization.

21122310012023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695566.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21122310012023 its reverse (32021001322112), we get a palindrome (53143311334135).

The spelling of 21122310012023 in words is "twenty-one trillion, one hundred twenty-two billion, three hundred ten million, twelve thousand, twenty-three".