2231436531 has 16 divisors (see below), whose sum is σ = 3068656128. Its totient is φ = 1441548000.

The previous prime is 2231436511. The next prime is 2231436611. The reversal of 2231436531 is 1356341322.

It is not a de Polignac number, because 2231436531 - 2⁵ = 2231436499 is a prime.

It is a super-3 number, since 3×2231436531³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2231436511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64105 + ... + 92586.

It is an arithmetic number, because the mean of its divisors is an integer number (191791008).

Almost surely, 2^2231436531 is an apocalyptic number.

2231436531 is a deficient number, since it is larger than the sum of its proper divisors (837219597).

2231436531 is a wasteful number, since it uses less digits than its factorization.

2231436531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156842.

The product of its digits is 12960, while the sum is 30.

The square root of 2231436531 is about 47238.0834814453. The cubic root of 2231436531 is about 1306.7570331855.

Adding to 2231436531 its reverse (1356341322), we get a palindrome (3587777853).

The spelling of 2231436531 in words is "two billion, two hundred thirty-one million, four hundred thirty-six thousand, five hundred thirty-one".