23012130421 has 8 divisors (see below), whose sum is σ = 27683766080. Its totient is φ = 18686541888.

The previous prime is 23012130409. The next prime is 23012130457. The reversal of 23012130421 is 12403121032.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23012130421 - 2⁷ = 23012130293 is a prime.

It is a super-2 number, since 2×23012130421² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012130481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86511636 + ... + 86511901.

It is an arithmetic number, because the mean of its divisors is an integer number (3460470760).

Almost surely, 2^23012130421 is an apocalyptic number.

It is an amenable number.

23012130421 is a deficient number, since it is larger than the sum of its proper divisors (4671635659).

23012130421 is a wasteful number, since it uses less digits than its factorization.

23012130421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173023563.

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

Adding to 23012130421 its reverse (12403121032), we get a palindrome (35415251453).

The spelling of 23012130421 in words is "twenty-three billion, twelve million, one hundred thirty thousand, four hundred twenty-one".