23123124030021 has 64 divisors (see below), whose sum is σ = 31890441623040. Its totient is φ = 14896370810880.

The previous prime is 23123124030001. The next prime is 23123124030059. The reversal of 23123124030021 is 12003042132132.

It is not a de Polignac number, because 23123124030021 - 2¹⁴ = 23123124013637 is a prime.

It is a super-2 number, since 2×23123124030021² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23123124029973 and 23123124030000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23123124030001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2240390541 + ... + 2240400861.

It is an arithmetic number, because the mean of its divisors is an integer number (498288150360).

Almost surely, 2^{23123124030021} is an apocalyptic number.

It is an amenable number.

23123124030021 is a deficient number, since it is larger than the sum of its proper divisors (8767317593019).

23123124030021 is a wasteful number, since it uses less digits than its factorization.

23123124030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11246.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 23123124030021 its reverse (12003042132132), we get a palindrome (35126166162153).

The spelling of 23123124030021 in words is "twenty-three trillion, one hundred twenty-three billion, one hundred twenty-four million, thirty thousand, twenty-one".