231331032051 has 16 divisors (see below), whose sum is σ = 352511368704. Its totient is φ = 132186559104.

The previous prime is 231331032017. The next prime is 231331032077. The reversal of 231331032051 is 150230133132.

It is not a de Polignac number, because 231331032051 - 2¹⁸ = 231330769907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231331032451) 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, 1638090 + ... + 1773696.

It is an arithmetic number, because the mean of its divisors is an integer number (22031960544).

Almost surely, 2^231331032051 is an apocalyptic number.

231331032051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

231331032051 is a deficient number, since it is larger than the sum of its proper divisors (121180336653).

231331032051 is a wasteful number, since it uses less digits than its factorization.

231331032051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216850.

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 231331032051 its reverse (150230133132), we get a palindrome (381561165183).

The spelling of 231331032051 in words is "two hundred thirty-one billion, three hundred thirty-one million, thirty-two thousand, fifty-one".