2345131320 has 128 divisors (see below), whose sum is σ = 8160652800. Its totient is φ = 528016896.

The previous prime is 2345131319. The next prime is 2345131337. The reversal of 2345131320 is 231315432.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35446 + ... + 77114.

It is an arithmetic number, because the mean of its divisors is an integer number (63755100).

Almost surely, 2^2345131320 is an apocalyptic number.

2345131320 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 2345131320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4080326400).

2345131320 is an abundant number, since it is smaller than the sum of its proper divisors (5815521480).

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

2345131320 is a wasteful number, since it uses less digits than its factorization.

2345131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41757 (or 41753 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2345131320 is about 48426.5559378323. Note that the first 3 decimals coincide. The cubic root of 2345131320 is about 1328.5841151688.

Adding to 2345131320 its reverse (231315432), we get a palindrome (2576446752).

The spelling of 2345131320 in words is "two billion, three hundred forty-five million, one hundred thirty-one thousand, three hundred twenty".