121001231 has 8 divisors (see below), whose sum is σ = 130430160. Its totient is φ = 111589632.

The previous prime is 121001213. The next prime is 121001239. The reversal of 121001231 is 132100121.

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 121001231 - 2²⁶ = 53892367 is a prime.

It is a super-2 number, since 2×121001231² = 29282595807030722, 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 (121001239) 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, 12671 + ... + 20063.

It is an arithmetic number, because the mean of its divisors is an integer number (16303770).

Almost surely, 2^121001231 is an apocalyptic number.

121001231 is a deficient number, since it is larger than the sum of its proper divisors (9428929).

121001231 is a wasteful number, since it uses less digits than its factorization.

121001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8665.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 121001231 is about 11000.0559544031. The cubic root of 121001231 is about 494.6104216287.

Adding to 121001231 its reverse (132100121), we get a palindrome (253101352).

It can be divided in two parts, 12100 and 1231, that added together give a palindrome (13331).

The spelling of 121001231 in words is "one hundred twenty-one million, one thousand, two hundred thirty-one".