5431021431 has 16 divisors (see below), whose sum is σ = 8113173888. Its totient is φ = 3202567200.

The previous prime is 5431021423. The next prime is 5431021439. The reversal of 5431021431 is 1341201345.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5431021423) and next prime (5431021439).

It is not a de Polignac number, because 5431021431 - 2³ = 5431021423 is a prime.

It is a super-2 number, since 2×5431021431² = 58991987567962575522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5431021439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2222785 + ... + 2225226.

It is an arithmetic number, because the mean of its divisors is an integer number (507073368).

Almost surely, 2^5431021431 is an apocalyptic number.

5431021431 is a deficient number, since it is larger than the sum of its proper divisors (2682152457).

5431021431 is a wasteful number, since it uses less digits than its factorization.

5431021431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4448062.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 5431021431 is about 73695.4641141502. The cubic root of 5431021431 is about 1757.7637566764.

Adding to 5431021431 its reverse (1341201345), we get a palindrome (6772222776).

The spelling of 5431021431 in words is "five billion, four hundred thirty-one million, twenty-one thousand, four hundred thirty-one".