23220340304020 has 48 divisors (see below), whose sum is σ = 48785201676288. Its totient is φ = 9283853669120.

The previous prime is 23220340304017. The next prime is 23220340304027. The reversal of 23220340304020 is 2040304302232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220340304027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657279597 + ... + 657314923.

It is an arithmetic number, because the mean of its divisors is an integer number (1016358368256).

Almost surely, 2^{23220340304020} is an apocalyptic number.

23220340304020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23220340304020 is an abundant number, since it is smaller than the sum of its proper divisors (25564861372268).

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

23220340304020 is a wasteful number, since it uses less digits than its factorization.

23220340304020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49560 (or 49558 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 23220340304020 its reverse (2040304302232), we get a palindrome (25260644606252).

The spelling of 23220340304020 in words is "twenty-three trillion, two hundred twenty billion, three hundred forty million, three hundred four thousand, twenty".