121239339 has 8 divisors (see below), whose sum is σ = 174087312. Its totient is φ = 74608800.

The previous prime is 121239331. The next prime is 121239341. The reversal of 121239339 is 933932121.

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

It is not a de Polignac number, because 121239339 - 2³ = 121239331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121239331) 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, 1554312 + ... + 1554389.

It is an arithmetic number, because the mean of its divisors is an integer number (21760914).

Almost surely, 2^121239339 is an apocalyptic number.

121239339 is a deficient number, since it is larger than the sum of its proper divisors (52847973).

121239339 is a wasteful number, since it uses less digits than its factorization.

121239339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108717.

The product of its digits is 8748, while the sum is 33.

The square root of 121239339 is about 11010.8736710581. The cubic root of 121239339 is about 494.9346429372.

The spelling of 121239339 in words is "one hundred twenty-one million, two hundred thirty-nine thousand, three hundred thirty-nine".