123231190 has 16 divisors (see below), whose sum is σ = 221942592. Its totient is φ = 49264384.

The previous prime is 123231167. The next prime is 123231191. The reversal of 123231190 is 91132321.

It is a super-2 number, since 2×123231190² = 30371852377632200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231191) 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, 32262 + ... + 35878.

It is an arithmetic number, because the mean of its divisors is an integer number (13871412).

Almost surely, 2^123231190 is an apocalyptic number.

123231190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123231190 is a deficient number, since it is larger than the sum of its proper divisors (98711402).

123231190 is a wasteful number, since it uses less digits than its factorization.

123231190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7031.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 123231190 is about 11100.9544634684. The cubic root of 123231190 is about 497.6303741544.

The spelling of 123231190 in words is "one hundred twenty-three million, two hundred thirty-one thousand, one hundred ninety".