119231391 has 16 divisors (see below), whose sum is σ = 161998848. Its totient is φ = 77985600.

The previous prime is 119231351. The next prime is 119231401. The reversal of 119231391 is 193132911.

It is a happy number.

It is not a de Polignac number, because 119231391 - 2⁷ = 119231263 is a prime.

It is a super-2 number, since 2×119231391² = 28432249199589762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119231311) 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 15 ways as a sum of consecutive naturals, for example, 55426 + ... + 57536.

It is an arithmetic number, because the mean of its divisors is an integer number (10124928).

Almost surely, 2^119231391 is an apocalyptic number.

119231391 is a deficient number, since it is larger than the sum of its proper divisors (42767457).

119231391 is a wasteful number, since it uses less digits than its factorization.

119231391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462.

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

The square root of 119231391 is about 10919.3127530994. The cubic root of 119231391 is about 492.1870735819.

The spelling of 119231391 in words is "one hundred nineteen million, two hundred thirty-one thousand, three hundred ninety-one".