2421131431 has 8 divisors (see below), whose sum is σ = 2437142400. Its totient is φ = 2405138808.

The previous prime is 2421131417. The next prime is 2421131443. The reversal of 2421131431 is 1341311242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2421131431 - 2⁵ = 2421131399 is a prime.

It is a super-2 number, since 2×2421131431² = 11723754812352215522, which 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 (2421131491) 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, 347080 + ... + 353986.

It is an arithmetic number, because the mean of its divisors is an integer number (304642800).

Almost surely, 2^2421131431 is an apocalyptic number.

2421131431 is a deficient number, since it is larger than the sum of its proper divisors (16010969).

2421131431 is a wasteful number, since it uses less digits than its factorization.

2421131431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9173.

The product of its digits is 576, while the sum is 22.

The square root of 2421131431 is about 49204.9939640277. The cubic root of 2421131431 is about 1342.7838891862.

Adding to 2421131431 its reverse (1341311242), we get a palindrome (3762442673).

The spelling of 2421131431 in words is "two billion, four hundred twenty-one million, one hundred thirty-one thousand, four hundred thirty-one".