231200221112321 has 8 divisors (see below), whose sum is σ = 232556385605544. Its totient is φ = 229844283596800.

The previous prime is 231200221112297. The next prime is 231200221112369. The reversal of 231200221112321 is 123211122002132.

It can be written as a sum of positive squares in 4 ways, for example, as 32794966902721 + 198405254209600 = 5726689^2 + 14085640^2 .

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 231200221112321 - 2³⁰ = 231199147370497 is a prime.

It is a super-2 number, since 2×231200221112321² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231200221112921) 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, 54701030 + ... + 58775871.

It is an arithmetic number, because the mean of its divisors is an integer number (29069548200693).

Almost surely, 2^{231200221112321} is an apocalyptic number.

It is an amenable number.

231200221112321 is a deficient number, since it is larger than the sum of its proper divisors (1356164493223).

231200221112321 is a wasteful number, since it uses less digits than its factorization.

231200221112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113488851.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 231200221112321 its reverse (123211122002132), we get a palindrome (354411343114453).

The spelling of 231200221112321 in words is "two hundred thirty-one trillion, two hundred billion, two hundred twenty-one million, one hundred twelve thousand, three hundred twenty-one".