23011040420 has 24 divisors (see below), whose sum is σ = 48590171448. Its totient is φ = 9153561600.

The previous prime is 23011040411. The next prime is 23011040441. The reversal of 23011040420 is 2404011032.

It can be written as a sum of positive squares in 4 ways, for example, as 2602632256 + 20408408164 = 51016^2 + 142858^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3174701 + ... + 3181940.

It is an arithmetic number, because the mean of its divisors is an integer number (2024590477).

Almost surely, 2^23011040420 is an apocalyptic number.

23011040420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23011040420 is an abundant number, since it is smaller than the sum of its proper divisors (25579131028).

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

23011040420 is a wasteful number, since it uses less digits than its factorization.

23011040420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6356831 (or 6356829 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 23011040420 its reverse (2404011032), we get a palindrome (25415051452).

The spelling of 23011040420 in words is "twenty-three billion, eleven million, forty thousand, four hundred twenty".