121341231 has 24 divisors (see below), whose sum is σ = 191824464. Its totient is φ = 73301760.

The previous prime is 121341217. The next prime is 121341287. The reversal of 121341231 is 132143121.

It is not a de Polignac number, because 121341231 - 2⁹ = 121340719 is a prime.

It is a super-2 number, since 2×121341231² = 29447388681190722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121341211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31545 + ... + 35181.

It is an arithmetic number, because the mean of its divisors is an integer number (7992686).

Almost surely, 2^121341231 is an apocalyptic number.

121341231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121341231 is a deficient number, since it is larger than the sum of its proper divisors (70483233).

121341231 is a wasteful number, since it uses less digits than its factorization.

121341231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3991 (or 3988 counting only the distinct ones).

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

The square root of 121341231 is about 11015.4995801371. The cubic root of 121341231 is about 495.0732551517.

Adding to 121341231 its reverse (132143121), we get a palindrome (253484352).

The spelling of 121341231 in words is "one hundred twenty-one million, three hundred forty-one thousand, two hundred thirty-one".