121131293 has 2 divisors, whose sum is σ = 121131294. Its totient is φ = 121131292.

The previous prime is 121131287. The next prime is 121131323. The reversal of 121131293 is 392131121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68525284 + 52606009 = 8278^2 + 7253^2 .

It is a cyclic number.

It is not a de Polignac number, because 121131293 - 2⁸ = 121131037 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121131223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60565646 + 60565647.

It is an arithmetic number, because the mean of its divisors is an integer number (60565647).

Almost surely, 2^121131293 is an apocalyptic number.

It is an amenable number.

121131293 is a deficient number, since it is larger than the sum of its proper divisors (1).

121131293 is an equidigital number, since it uses as much as digits as its factorization.

121131293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 23.

The square root of 121131293 is about 11005.9662456324. The cubic root of 121131293 is about 494.7875740561.

The spelling of 121131293 in words is "one hundred twenty-one million, one hundred thirty-one thousand, two hundred ninety-three".