121132231 has 8 divisors (see below), whose sum is σ = 132224400. Its totient is φ = 110053440.

The previous prime is 121132213. The next prime is 121132241. The reversal of 121132231 is 132231121.

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 121132231 - 2⁵ = 121132199 is a prime.

It is a super-2 number, since 2×121132231² = 29346034774074722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121132241) 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, 30805 + ... + 34513.

It is an arithmetic number, because the mean of its divisors is an integer number (16528050).

Almost surely, 2^121132231 is an apocalyptic number.

121132231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121132231 is a deficient number, since it is larger than the sum of its proper divisors (11092169).

121132231 is a wasteful number, since it uses less digits than its factorization.

121132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6689.

The product of its digits is 72, while the sum is 16.

The square root of 121132231 is about 11006.0088588007. The cubic root of 121132231 is about 494.7888512090.

Adding to 121132231 its reverse (132231121), we get a palindrome (253363352).

It can be divided in two parts, 121 and 132231, that multiplied together give a palindrome (15999951).

The spelling of 121132231 in words is "one hundred twenty-one million, one hundred thirty-two thousand, two hundred thirty-one".