121151131 has 8 divisors (see below), whose sum is σ = 127180800. Its totient is φ = 115254120.

The previous prime is 121151113. The next prime is 121151137. The reversal of 121151131 is 131151121.

It is a happy number.

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 121151131 - 2¹⁵ = 121118363 is a prime.

It is a super-2 number, since 2×121151131² = 29355193085158322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121151137) 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, 31291 + ... + 34948.

It is an arithmetic number, because the mean of its divisors is an integer number (15897600).

Almost surely, 2^121151131 is an apocalyptic number.

121151131 is a deficient number, since it is larger than the sum of its proper divisors (6029669).

121151131 is an equidigital number, since it uses as much as digits as its factorization.

121151131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66329.

The product of its digits is 30, while the sum is 16.

The square root of 121151131 is about 11006.8674471895. The cubic root of 121151131 is about 494.8145834821.

The spelling of 121151131 in words is "one hundred twenty-one million, one hundred fifty-one thousand, one hundred thirty-one".