2520202763431 has 4 divisors (see below), whose sum is σ = 2523892665672. Its totient is φ = 2516512861192.

The previous prime is 2520202763417. The next prime is 2520202763467. The reversal of 2520202763431 is 1343672020252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2520202763431 - 2²⁹ = 2519665892519 is a prime.

It is a super-2 number, since 2×2520202763431² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520202463431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1844950096 + ... + 1844951461.

It is an arithmetic number, because the mean of its divisors is an integer number (630973166418).

Almost surely, 2^{2520202763431} is an apocalyptic number.

2520202763431 is a deficient number, since it is larger than the sum of its proper divisors (3689902241).

2520202763431 is an equidigital number, since it uses as much as digits as its factorization.

2520202763431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689902240.

The product of its (nonzero) digits is 120960, while the sum is 37.

Adding to 2520202763431 its reverse (1343672020252), we get a palindrome (3863874783683).

The spelling of 2520202763431 in words is "two trillion, five hundred twenty billion, two hundred two million, seven hundred sixty-three thousand, four hundred thirty-one".