121319143 has 8 divisors (see below), whose sum is σ = 132466176. Its totient is φ = 110191800.

The previous prime is 121319141. The next prime is 121319153. The reversal of 121319143 is 341913121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121319143 - 2¹ = 121319141 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 (121319141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9930 + ... + 18472.

It is an arithmetic number, because the mean of its divisors is an integer number (16558272).

Almost surely, 2^121319143 is an apocalyptic number.

121319143 is a deficient number, since it is larger than the sum of its proper divisors (11147033).

121319143 is a wasteful number, since it uses less digits than its factorization.

121319143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9845.

The product of its digits is 648, while the sum is 25.

The square root of 121319143 is about 11014.4969472055. The cubic root of 121319143 is about 495.0432135861.

The spelling of 121319143 in words is "one hundred twenty-one million, three hundred nineteen thousand, one hundred forty-three".