2431113140 has 24 divisors (see below), whose sum is σ = 5117146440. Its totient is φ = 970195968.

The previous prime is 2431113109. The next prime is 2431113143. The reversal of 2431113140 is 413111342.

It can be written as a sum of positive squares in 4 ways, for example, as 64096036 + 2367017104 = 8006^2 + 48652^2 .

It is a super-2 number, since 2×2431113140² = 11820622198961319200, which 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 not an unprimeable number, because it can be changed into a prime (2431113143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131705 + ... + 149024.

It is an arithmetic number, because the mean of its divisors is an integer number (213214435).

Almost surely, 2^2431113140 is an apocalyptic number.

2431113140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2431113140 is an abundant number, since it is smaller than the sum of its proper divisors (2686033300).

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

2431113140 is a wasteful number, since it uses less digits than its factorization.

2431113140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281171 (or 281169 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2431113140 is about 49306.3194732683. The cubic root of 2431113140 is about 1344.6266778507.

Adding to 2431113140 its reverse (413111342), we get a palindrome (2844224482).

The spelling of 2431113140 in words is "two billion, four hundred thirty-one million, one hundred thirteen thousand, one hundred forty".