23513570001140 has 96 divisors (see below), whose sum is σ = 51159591705600. Its totient is φ = 9067174323200.

The previous prime is 23513570001139. The next prime is 23513570001149. The reversal of 23513570001140 is 4110007531532.

It is a junction number, because it is equal to n+sod(n) for n = 23513570001097 and 23513570001106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23513570001149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2386917215 + ... + 2386927065.

It is an arithmetic number, because the mean of its divisors is an integer number (532912413600).

Almost surely, 2^{23513570001140} is an apocalyptic number.

23513570001140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23513570001140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25579795852800).

23513570001140 is an abundant number, since it is smaller than the sum of its proper divisors (27646021704460).

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

23513570001140 is a wasteful number, since it uses less digits than its factorization.

23513570001140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15785 (or 15783 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

Adding to 23513570001140 its reverse (4110007531532), we get a palindrome (27623577532672).

The spelling of 23513570001140 in words is "twenty-three trillion, five hundred thirteen billion, five hundred seventy million, one thousand, one hundred forty".