231112421 has 8 divisors (see below), whose sum is σ = 234189984. Its totient is φ = 228042000.

The previous prime is 231112417. The next prime is 231112429. The reversal of 231112421 is 124211132.

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 231112421 - 2² = 231112417 is a prime.

It is a super-2 number, since 2×231112421² = 106825902280962482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231112421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231112429) 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, 101546 + ... + 103796.

It is an arithmetic number, because the mean of its divisors is an integer number (29273748).

Almost surely, 2^231112421 is an apocalyptic number.

It is an amenable number.

231112421 is a deficient number, since it is larger than the sum of its proper divisors (3077563).

231112421 is a wasteful number, since it uses less digits than its factorization.

231112421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571.

The product of its digits is 96, while the sum is 17.

The square root of 231112421 is about 15202.3820830816. The cubic root of 231112421 is about 613.6787648972.

Adding to 231112421 its reverse (124211132), we get a palindrome (355323553).

The spelling of 231112421 in words is "two hundred thirty-one million, one hundred twelve thousand, four hundred twenty-one".