23203112040 has 64 divisors (see below), whose sum is σ = 77343710400. Its totient is φ = 6187496256.

The previous prime is 23203112027. The next prime is 23203112081. The reversal of 23203112040 is 4021130232.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 10741102 + ... + 10743261.

It is an arithmetic number, because the mean of its divisors is an integer number (1208495475).

Almost surely, 2^23203112040 is an apocalyptic number.

23203112040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23203112040 is an abundant number, since it is smaller than the sum of its proper divisors (54140598360).

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

23203112040 is a wasteful number, since it uses less digits than its factorization.

23203112040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21484383 (or 21484373 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23203112040 its reverse (4021130232), we get a palindrome (27224242272).

The spelling of 23203112040 in words is "twenty-three billion, two hundred three million, one hundred twelve thousand, forty".