121431341 has 4 divisors (see below), whose sum is σ = 122545500. Its totient is φ = 120317184.

The previous prime is 121431313. The next prime is 121431361. The reversal of 121431341 is 143134121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109286116 + 12145225 = 10454^2 + 3485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121431341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121431301) 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, 556916 + ... + 557133.

It is an arithmetic number, because the mean of its divisors is an integer number (30636375).

Almost surely, 2^121431341 is an apocalyptic number.

It is an amenable number.

121431341 is a deficient number, since it is larger than the sum of its proper divisors (1114159).

121431341 is a wasteful number, since it uses less digits than its factorization.

121431341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114158.

The product of its digits is 288, while the sum is 20.

The square root of 121431341 is about 11019.5889669261. The cubic root of 121431341 is about 495.1957746840.

Adding to 121431341 its reverse (143134121), we get a palindrome (264565462).

The spelling of 121431341 in words is "one hundred twenty-one million, four hundred thirty-one thousand, three hundred forty-one".