121043231 has 8 divisors (see below), whose sum is σ = 122871840. Its totient is φ = 119227392.

The previous prime is 121043191. The next prime is 121043239. The reversal of 121043231 is 132340121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121043231 is a prime.

It is a super-2 number, since 2×121043231² = 29302927541838722, which 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 (121043239) 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, 16835 + ... + 22923.

It is an arithmetic number, because the mean of its divisors is an integer number (15358980).

Almost surely, 2^121043231 is an apocalyptic number.

121043231 is a deficient number, since it is larger than the sum of its proper divisors (1828609).

121043231 is a wasteful number, since it uses less digits than its factorization.

121043231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6385.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 121043231 is about 11001.9648699675. The cubic root of 121043231 is about 494.6676420786.

Adding to 121043231 its reverse (132340121), we get a palindrome (253383352).

The spelling of 121043231 in words is "one hundred twenty-one million, forty-three thousand, two hundred thirty-one".