231321115051 has 8 divisors (see below), whose sum is σ = 262226365520. Its totient is φ = 202288910112.

The previous prime is 231321115037. The next prime is 231321115061. The reversal of 231321115051 is 150511123132.

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 231321115051 - 2⁷ = 231321114923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231321115031) 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, 468261120 + ... + 468261613.

It is an arithmetic number, because the mean of its divisors is an integer number (32778295690).

Almost surely, 2^231321115051 is an apocalyptic number.

231321115051 is a deficient number, since it is larger than the sum of its proper divisors (30905250469).

231321115051 is a wasteful number, since it uses less digits than its factorization.

231321115051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936522765.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 231321115051 its reverse (150511123132), we get a palindrome (381832238183).

The spelling of 231321115051 in words is "two hundred thirty-one billion, three hundred twenty-one million, one hundred fifteen thousand, fifty-one".