23124551421 has 16 divisors (see below), whose sum is σ = 31547237184. Its totient is φ = 15063064704.

The previous prime is 23124551419. The next prime is 23124551431. The reversal of 23124551421 is 12415542132.

It is not a de Polignac number, because 23124551421 - 2¹ = 23124551419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23124551431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469986 + ... + 516851.

It is an arithmetic number, because the mean of its divisors is an integer number (1971702324).

Almost surely, 2^23124551421 is an apocalyptic number.

It is an amenable number.

23124551421 is a deficient number, since it is larger than the sum of its proper divisors (8422685763).

23124551421 is a wasteful number, since it uses less digits than its factorization.

23124551421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987020.

The product of its digits is 9600, while the sum is 30.

The spelling of 23124551421 in words is "twenty-three billion, one hundred twenty-four million, five hundred fifty-one thousand, four hundred twenty-one".