23451120340 has 48 divisors (see below), whose sum is σ = 49978760832. Its totient is φ = 9242061696.

The previous prime is 23451120311. The next prime is 23451120347. The reversal of 23451120340 is 4302115432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23451120347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376927 + ... + 434713.

It is an arithmetic number, because the mean of its divisors is an integer number (1041224184).

Almost surely, 2^23451120340 is an apocalyptic number.

23451120340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23451120340 is an abundant number, since it is smaller than the sum of its proper divisors (26527640492).

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

23451120340 is a wasteful number, since it uses less digits than its factorization.

23451120340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58096 (or 58094 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 23451120340 its reverse (4302115432), we get a palindrome (27753235772).

The spelling of 23451120340 in words is "twenty-three billion, four hundred fifty-one million, one hundred twenty thousand, three hundred forty".