2431213520 has 80 divisors (see below), whose sum is σ = 6002615808. Its totient is φ = 912599040.

The previous prime is 2431213487. The next prime is 2431213553. The reversal of 2431213520 is 253121342.

2431213520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2431213487) and next prime (2431213553).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496685 + ... + 501555.

Almost surely, 2^2431213520 is an apocalyptic number.

2431213520 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 2431213520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3001307904).

2431213520 is an abundant number, since it is smaller than the sum of its proper divisors (3571402288).

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

2431213520 is a wasteful number, since it uses less digits than its factorization.

2431213520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5268 (or 5262 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2431213520 is about 49307.3373850181. The cubic root of 2431213520 is about 1344.6451840192.

Adding to 2431213520 its reverse (253121342), we get a palindrome (2684334862).

The spelling of 2431213520 in words is "two billion, four hundred thirty-one million, two hundred thirteen thousand, five hundred twenty".