121319319 has 32 divisors (see below), whose sum is σ = 185799168. Its totient is φ = 70276800.

The previous prime is 121319309. The next prime is 121319323. The reversal of 121319319 is 913913121.

It is a happy number.

It is not a de Polignac number, because 121319319 - 2⁸ = 121319063 is a prime.

It is a super-2 number, since 2×121319319² = 29436754325247522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121319309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91179 + ... + 92499.

It is an arithmetic number, because the mean of its divisors is an integer number (5806224).

Almost surely, 2^121319319 is an apocalyptic number.

121319319 is a deficient number, since it is larger than the sum of its proper divisors (64479849).

121319319 is a wasteful number, since it uses less digits than its factorization.

121319319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380 (or 1358 counting only the distinct ones).

The product of its digits is 1458, while the sum is 30.

The square root of 121319319 is about 11014.5049366733. The cubic root of 121319319 is about 495.0434529755.

The spelling of 121319319 in words is "one hundred twenty-one million, three hundred nineteen thousand, three hundred nineteen".