121341143 has 16 divisors (see below), whose sum is σ = 151683840. Its totient is φ = 94300800.

The previous prime is 121341137. The next prime is 121341149. The reversal of 121341143 is 341143121.

It is an interprime number because it is at equal distance from previous prime (121341137) and next prime (121341149).

It is a de Polignac number, because none of the positive numbers 2^k-121341143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121341149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30383 + ... + 34143.

It is an arithmetic number, because the mean of its divisors is an integer number (9480240).

Almost surely, 2^121341143 is an apocalyptic number.

121341143 is a deficient number, since it is larger than the sum of its proper divisors (30342697).

121341143 is a wasteful number, since it uses less digits than its factorization.

121341143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4198.

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

The square root of 121341143 is about 11015.4955857646. The cubic root of 121341143 is about 495.0731354714.

Adding to 121341143 its reverse (341143121), we get a palindrome (462484264).

The spelling of 121341143 in words is "one hundred twenty-one million, three hundred forty-one thousand, one hundred forty-three".