2312303040 has 168 divisors, whose sum is σ = 8372154960. Its totient is φ = 584146944.

The previous prime is 2312303029. The next prime is 2312303041. The reversal of 2312303040 is 403032132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312303041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33592 + ... + 75848.

Almost surely, 2^2312303040 is an apocalyptic number.

2312303040 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 2312303040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4186077480).

2312303040 is an abundant number, since it is smaller than the sum of its proper divisors (6059851920).

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

2312303040 is a wasteful number, since it uses less digits than its factorization.

2312303040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42299 (or 42286 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2312303040 is about 48086.4122180060. The cubic root of 2312303040 is about 1322.3555735330.

Adding to 2312303040 its reverse (403032132), we get a palindrome (2715335172).

It can be divided in two parts, 231230 and 3040, that added together give a triangular number (234270 = T₆₈₄).

The spelling of 2312303040 in words is "two billion, three hundred twelve million, three hundred three thousand, forty".