23406205020 has 48 divisors (see below), whose sum is σ = 71495319168. Its totient is φ = 5674231360.

The previous prime is 23406205003. The next prime is 23406205021. The reversal of 23406205020 is 2050260432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23406205021) 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, 17731314 + ... + 17732633.

It is an arithmetic number, because the mean of its divisors is an integer number (1489485816).

Almost surely, 2^23406205020 is an apocalyptic number.

23406205020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23406205020 is an abundant number, since it is smaller than the sum of its proper divisors (48089114148).

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

23406205020 is a wasteful number, since it uses less digits than its factorization.

23406205020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35463970 (or 35463968 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 23406205020 its reverse (2050260432), we get a palindrome (25456465452).

The spelling of 23406205020 in words is "twenty-three billion, four hundred six million, two hundred five thousand, twenty".