23003213240 has 64 divisors (see below), whose sum is σ = 59164300800. Its totient is φ = 7885058688.

The previous prime is 23003213239. The next prime is 23003213251. The reversal of 23003213240 is 4231230032.

It is a super-2 number, since 2×23003213240² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

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, 2200907 + ... + 2211333.

It is an arithmetic number, because the mean of its divisors is an integer number (924442200).

Almost surely, 2^23003213240 is an apocalyptic number.

23003213240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23003213240 is an abundant number, since it is smaller than the sum of its proper divisors (36161087560).

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

23003213240 is a wasteful number, since it uses less digits than its factorization.

23003213240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18324 (or 18320 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23003213240 its reverse (4231230032), we get a palindrome (27234443272).

The spelling of 23003213240 in words is "twenty-three billion, three million, two hundred thirteen thousand, two hundred forty".