121301131 has 4 divisors (see below), whose sum is σ = 138629872. Its totient is φ = 103972392.

The previous prime is 121301087. The next prime is 121301161. The reversal of 121301131 is 131103121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131103121 = 67 ⋅1956763.

It is a cyclic number.

It is not a de Polignac number, because 121301131 - 2⁷ = 121301003 is a prime.

It is a super-2 number, since 2×121301131² = 29427928763758322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121301161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8664360 + ... + 8664373.

It is an arithmetic number, because the mean of its divisors is an integer number (34657468).

Almost surely, 2^121301131 is an apocalyptic number.

121301131 is a deficient number, since it is larger than the sum of its proper divisors (17328741).

121301131 is an equidigital number, since it uses as much as digits as its factorization.

121301131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17328740.

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

The square root of 121301131 is about 11013.6792671659. The cubic root of 121301131 is about 495.0187130293.

Adding to 121301131 its reverse (131103121), we get a palindrome (252404252).

The spelling of 121301131 in words is "one hundred twenty-one million, three hundred one thousand, one hundred thirty-one".