23124240000020 has 24 divisors (see below), whose sum is σ = 49873360866504. Its totient is φ = 8999704215936.

The previous prime is 23124239999999. The next prime is 23124240000023. The reversal of 23124240000020 is 2000004242132.

It can be written as a sum of positive squares in 4 ways, for example, as 12005296397956 + 11118943602064 = 3464866^2 + 3334508^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23124239999947 and 23124240000001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23124240000023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15624485747 + ... + 15624487226.

It is an arithmetic number, because the mean of its divisors is an integer number (2078056702771).

Almost surely, 2^{23124240000020} is an apocalyptic number.

23124240000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23124240000020 is an abundant number, since it is smaller than the sum of its proper divisors (26749120866484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23124240000020 is a wasteful number, since it uses less digits than its factorization.

23124240000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31248973019 (or 31248973017 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 23124240000020 its reverse (2000004242132), we get a palindrome (25124244242152).

The spelling of 23124240000020 in words is "twenty-three trillion, one hundred twenty-four billion, two hundred forty million, twenty", and thus it is an aban number.