123219902 has 16 divisors (see below), whose sum is σ = 209524560. Its totient is φ = 53877312.

The previous prime is 123219857. The next prime is 123219919. The reversal of 123219902 is 209912321.

It is a congruent number.

It is an unprimeable number.

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, 124223 + ... + 125210.

It is an arithmetic number, because the mean of its divisors is an integer number (13095285).

Almost surely, 2^123219902 is an apocalyptic number.

123219902 is a deficient number, since it is larger than the sum of its proper divisors (86304658).

123219902 is a wasteful number, since it uses less digits than its factorization.

123219902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249467.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 123219902 is about 11100.4460270748. The cubic root of 123219902 is about 497.6151793454.

The spelling of 123219902 in words is "one hundred twenty-three million, two hundred nineteen thousand, nine hundred two".