121126131 has 32 divisors (see below), whose sum is σ = 207226880. Its totient is φ = 68491008.

The previous prime is 121126111. The next prime is 121126163. The reversal of 121126131 is 131621121.

It is not a de Polignac number, because 121126131 - 2⁵ = 121126099 is a prime.

It is a super-2 number, since 2×121126131² = 29343079222058322, which contains 22 as substring.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (121126111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15030 + ... + 21636.

It is an arithmetic number, because the mean of its divisors is an integer number (6475840).

Almost surely, 2^121126131 is an apocalyptic number.

121126131 is a deficient number, since it is larger than the sum of its proper divisors (86100749).

121126131 is an equidigital number, since it uses as much as digits as its factorization.

121126131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6720 (or 6714 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 121126131 is about 11005.7317339648. The cubic root of 121126131 is about 494.7805455125.

Adding to 121126131 its reverse (131621121), we get a palindrome (252747252).

The spelling of 121126131 in words is "one hundred twenty-one million, one hundred twenty-six thousand, one hundred thirty-one".