23321440100 has 36 divisors (see below), whose sum is σ = 57837173184. Its totient is φ = 7995922080.

The previous prime is 23321440099. The next prime is 23321440183. The reversal of 23321440100 is 104412332.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16657472 + ... + 16658871.

It is an arithmetic number, because the mean of its divisors is an integer number (1606588144).

Almost surely, 2^23321440100 is an apocalyptic number.

23321440100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23321440100 is an abundant number, since it is smaller than the sum of its proper divisors (34515733084).

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

23321440100 is a wasteful number, since it uses less digits than its factorization.

23321440100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33316364 (or 33316357 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23321440100 its reverse (104412332), we get a palindrome (23425852432).

The spelling of 23321440100 in words is "twenty-three billion, three hundred twenty-one million, four hundred forty thousand, one hundred".