23142343240420 has 48 divisors (see below), whose sum is σ = 53694971342208. Its totient is φ = 8333611066880.

The previous prime is 23142343240333. The next prime is 23142343240447. The reversal of 23142343240420 is 2404234324132.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1479681646 + ... + 1479697285.

It is an arithmetic number, because the mean of its divisors is an integer number (1118645236296).

Almost surely, 2^{23142343240420} is an apocalyptic number.

23142343240420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23142343240420 is an abundant number, since it is smaller than the sum of its proper divisors (30552628101788).

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

23142343240420 is a wasteful number, since it uses less digits than its factorization.

23142343240420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959378980 (or 2959378978 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 23142343240420 its reverse (2404234324132), we get a palindrome (25546577564552).

The spelling of 23142343240420 in words is "twenty-three trillion, one hundred forty-two billion, three hundred forty-three million, two hundred forty thousand, four hundred twenty".