23103553440 has 96 divisors (see below), whose sum is σ = 79392229056. Its totient is φ = 5600860160.

The previous prime is 23103553439. The next prime is 23103553471. The reversal of 23103553440 is 4435530132.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 23103553398 and 23103553407.

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, 2182557 + ... + 2193116.

It is an arithmetic number, because the mean of its divisors is an integer number (827002386).

Almost surely, 2^23103553440 is an apocalyptic number.

23103553440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23103553440 is an abundant number, since it is smaller than the sum of its proper divisors (56288675616).

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

23103553440 is a wasteful number, since it uses less digits than its factorization.

23103553440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375702 (or 4375694 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 23103553440 in words is "twenty-three billion, one hundred three million, five hundred fifty-three thousand, four hundred forty".