121413231 has 6 divisors (see below), whose sum is σ = 175374680. Its totient is φ = 80942148.

The previous prime is 121413203. The next prime is 121413233. The reversal of 121413231 is 132314121.

121413231 is a `hidden beast` number, since 1 + 21 + 413 + 231 = 666.

It is not a de Polignac number, because 121413231 - 2⁵ = 121413199 is a prime.

It is a super-2 number, since 2×121413231² = 29482345323718722, 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 (121413233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6745171 + ... + 6745188.

Almost surely, 2^121413231 is an apocalyptic number.

121413231 is a deficient number, since it is larger than the sum of its proper divisors (53961449).

121413231 is a wasteful number, since it uses less digits than its factorization.

121413231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13490365 (or 13490362 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 121413231 is about 11018.7672177971. The cubic root of 121413231 is about 495.1711559947.

Adding to 121413231 its reverse (132314121), we get a palindrome (253727352).

The spelling of 121413231 in words is "one hundred twenty-one million, four hundred thirteen thousand, two hundred thirty-one".