23135305020 has 48 divisors (see below), whose sum is σ = 65745714048. Its totient is φ = 6077332800.

The previous prime is 23135305019. The next prime is 23135305033. The reversal of 23135305020 is 2050353132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2873506 + ... + 2881545.

It is an arithmetic number, because the mean of its divisors is an integer number (1369702376).

Almost surely, 2^23135305020 is an apocalyptic number.

23135305020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23135305020 is an abundant number, since it is smaller than the sum of its proper divisors (42610409028).

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

23135305020 is a wasteful number, since it uses less digits than its factorization.

23135305020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755130 (or 5755128 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

Adding to 23135305020 its reverse (2050353132), we get a palindrome (25185658152).

The spelling of 23135305020 in words is "twenty-three billion, one hundred thirty-five million, three hundred five thousand, twenty".