121101331 has 8 divisors (see below), whose sum is σ = 133598304. Its totient is φ = 109058880.

The previous prime is 121101329. The next prime is 121101341. The reversal of 121101331 is 133101121.

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 121101331 - 2¹ = 121101329 is a prime.

It is a super-2 number, since 2×121101331² = 29331064739943122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121101311) 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, 113071 + ... + 114136.

It is an arithmetic number, because the mean of its divisors is an integer number (16699788).

Almost surely, 2^121101331 is an apocalyptic number.

121101331 is a deficient number, since it is larger than the sum of its proper divisors (12496973).

121101331 is a wasteful number, since it uses less digits than its factorization.

121101331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227261.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 121101331 is about 11004.6049906391. The cubic root of 121101331 is about 494.7467752187.

Adding to 121101331 its reverse (133101121), we get a palindrome (254202452).

The spelling of 121101331 in words is "one hundred twenty-one million, one hundred one thousand, three hundred thirty-one".