121411143 has 20 divisors (see below), whose sum is σ = 207277840. Its totient is φ = 69377472.

The previous prime is 121411141. The next prime is 121411153. The reversal of 121411143 is 341114121.

It is not a de Polignac number, because 121411143 - 2¹ = 121411141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121411141) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 106498 + ... + 107631.

It is an arithmetic number, because the mean of its divisors is an integer number (10363892).

Almost surely, 2^121411143 is an apocalyptic number.

121411143 is a deficient number, since it is larger than the sum of its proper divisors (85866697).

121411143 is an equidigital number, since it uses as much as digits as its factorization.

121411143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214148 (or 214139 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 121411143 is about 11018.6724699485. The cubic root of 121411143 is about 495.1683174153.

Adding to 121411143 its reverse (341114121), we get a palindrome (462525264).

The spelling of 121411143 in words is "one hundred twenty-one million, four hundred eleven thousand, one hundred forty-three".