23305155240 has 64 divisors (see below), whose sum is σ = 70319664000. Its totient is φ = 6178779392.

The previous prime is 23305155221. The next prime is 23305155259. The reversal of 23305155240 is 4255150332.

It is an interprime number because it is at equal distance from previous prime (23305155221) and next prime (23305155259).

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 = 23305155198 and 23305155207.

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, 540540 + ... + 582059.

It is an arithmetic number, because the mean of its divisors is an integer number (1098744750).

Almost surely, 2^23305155240 is an apocalyptic number.

23305155240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23305155240 is an abundant number, since it is smaller than the sum of its proper divisors (47014508760).

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

23305155240 is a wasteful number, since it uses less digits than its factorization.

23305155240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122786 (or 1122782 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 23305155240 in words is "twenty-three billion, three hundred five million, one hundred fifty-five thousand, two hundred forty".