23142213012500 has 72 divisors (see below), whose sum is σ = 50877312565464. Its totient is φ = 9209894960000.

The previous prime is 23142213012473. The next prime is 23142213012509. The reversal of 23142213012500 is 521031224132.

It can be written as a sum of positive squares in 12 ways, for example, as 23133194851204 + 9018161296 = 4809698^2 + 94964^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23142213012500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23142213012509) 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 23 ways as a sum of consecutive naturals, for example, 2236427 + ... + 7161426.

It is an arithmetic number, because the mean of its divisors is an integer number (706629341187).

Almost surely, 2^{23142213012500} is an apocalyptic number.

23142213012500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23142213012500 is an abundant number, since it is smaller than the sum of its proper divisors (27735099552964).

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

23142213012500 is an equidigital number, since it uses as much as digits as its factorization.

23142213012500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9398079 (or 9398057 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 23142213012500 its reverse (521031224132), we get a palindrome (23663244236632).

The spelling of 23142213012500 in words is "twenty-three trillion, one hundred forty-two billion, two hundred thirteen million, twelve thousand, five hundred".