121940351 has 8 divisors (see below), whose sum is σ = 131407584. Its totient is φ = 112485600.

The previous prime is 121940339. The next prime is 121940353. The reversal of 121940351 is 153049121.

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 121940351 - 2¹⁰ = 121939327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121940351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121940353) 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, 31325 + ... + 35001.

It is an arithmetic number, because the mean of its divisors is an integer number (16425948).

Almost surely, 2^121940351 is an apocalyptic number.

121940351 is a deficient number, since it is larger than the sum of its proper divisors (9467233).

121940351 is a wasteful number, since it uses less digits than its factorization.

121940351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6241.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 121940351 is about 11042.6605037011. The cubic root of 121940351 is about 495.8867226899.

Adding to 121940351 its reverse (153049121), we get a palindrome (274989472).

The spelling of 121940351 in words is "one hundred twenty-one million, nine hundred forty thousand, three hundred fifty-one".