123037830 has 24 divisors (see below), whose sum is σ = 319898592. Its totient is φ = 32810064.

The previous prime is 123037829. The next prime is 123037841. The reversal of 123037830 is 38730321.

It is a super-2 number, since 2×123037830² = 30276615222217800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123037794 and 123037803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 683454 + ... + 683633.

It is an arithmetic number, because the mean of its divisors is an integer number (13329108).

Almost surely, 2^123037830 is an apocalyptic number.

123037830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123037830 is an abundant number, since it is smaller than the sum of its proper divisors (196860762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123037830 is a wasteful number, since it uses less digits than its factorization.

123037830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367100 (or 1367097 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 123037830 is about 11092.2418834066. The cubic root of 123037830 is about 497.3699634046.

It can be divided in two parts, 1230 and 37830, that added together give a triangular number (39060 = T₂₇₉).

The spelling of 123037830 in words is "one hundred twenty-three million, thirty-seven thousand, eight hundred thirty".