121312119 has 8 divisors (see below), whose sum is σ = 171264240. Its totient is φ = 76117376.

The previous prime is 121312109. The next prime is 121312141. The reversal of 121312119 is 911213121.

It is a happy number.

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 121312119 - 2⁷ = 121311991 is a prime.

It is a super-2 number, since 2×121312119² = 29433260432540322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121312095 and 121312104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121312109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189284 + ... + 1189385.

It is an arithmetic number, because the mean of its divisors is an integer number (21408030).

Almost surely, 2^121312119 is an apocalyptic number.

121312119 is a deficient number, since it is larger than the sum of its proper divisors (49952121).

121312119 is a wasteful number, since it uses less digits than its factorization.

121312119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378689.

The product of its digits is 108, while the sum is 21.

The square root of 121312119 is about 11014.1780900801. The cubic root of 121312119 is about 495.0336595824.

It can be divided in two parts, 12 and 1312119, that added together give a palindrome (1312131).

The spelling of 121312119 in words is "one hundred twenty-one million, three hundred twelve thousand, one hundred nineteen".