2021432131 has 8 divisors (see below), whose sum is σ = 2028153600. Its totient is φ = 2014721160.

The previous prime is 2021432129. The next prime is 2021432183. The reversal of 2021432131 is 1312341202.

It is a happy number.

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 2021432131 - 2¹ = 2021432129 is a prime.

It is a super-2 number, since 2×2021432131² = 8172375720478402322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021432099 and 2021432108.

It is not an unprimeable number, because it can be changed into a prime (2021432731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577296 + ... + 580786.

It is an arithmetic number, because the mean of its divisors is an integer number (253519200).

Almost surely, 2^2021432131 is an apocalyptic number.

2021432131 is a deficient number, since it is larger than the sum of its proper divisors (6721469).

2021432131 is a wasteful number, since it uses less digits than its factorization.

2021432131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2021432131 is about 44960.3395338603. The cubic root of 2021432131 is about 1264.4055346589.

Adding to 2021432131 its reverse (1312341202), we get a palindrome (3333773333).

The spelling of 2021432131 in words is "two billion, twenty-one million, four hundred thirty-two thousand, one hundred thirty-one".