23404240100 has 18 divisors (see below), whose sum is σ = 50787201234. Its totient is φ = 9361696000.

The previous prime is 23404240007. The next prime is 23404240103. The reversal of 23404240100 is 104240432.

It can be written as a sum of positive squares in 3 ways, for example, as 7339691584 + 16064548516 = 85672^2 + 126746^2 .

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

It is not an unprimeable number, because it can be changed into a prime (23404240103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117021101 + ... + 117021300.

Almost surely, 2^23404240100 is an apocalyptic number.

23404240100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23404240100 is an abundant number, since it is smaller than the sum of its proper divisors (27382961134).

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

23404240100 is a wasteful number, since it uses less digits than its factorization.

23404240100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234042415 (or 234042408 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 23404240100 its reverse (104240432), we get a palindrome (23508480532).

The spelling of 23404240100 in words is "twenty-three billion, four hundred four million, two hundred forty thousand, one hundred".