231000020321231 has 8 divisors (see below), whose sum is σ = 265748367750144. Its totient is φ = 196688759023800.

The previous prime is 231000020321209. The next prime is 231000020321233. The reversal of 231000020321231 is 132123020000132.

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 231000020321231 - 2²⁶ = 230999953212367 is a prime.

It is a super-2 number, since 2×231000020321231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231000020321233) 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, 109271531735 + ... + 109271533848.

It is an arithmetic number, because the mean of its divisors is an integer number (33218545968768).

Almost surely, 2^{231000020321231} is an apocalyptic number.

231000020321231 is a deficient number, since it is larger than the sum of its proper divisors (34748347428913).

231000020321231 is a wasteful number, since it uses less digits than its factorization.

231000020321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218543065741.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231000020321231 its reverse (132123020000132), we get a palindrome (363123040321363).

The spelling of 231000020321231 in words is "two hundred thirty-one trillion, twenty million, three hundred twenty-one thousand, two hundred thirty-one".