123292830 has 16 divisors (see below), whose sum is σ = 295902864. Its totient is φ = 32878080.

The previous prime is 123292817. The next prime is 123292837. The reversal of 123292830 is 38292321.

It is a happy number.

It is a super-2 number, since 2×123292830² = 30402243858817800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4109761 = 123292830 / (1 + 2 + 3 + 2 + 9 + 2 + 8 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123292837) 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, 2054851 + ... + 2054910.

It is an arithmetic number, because the mean of its divisors is an integer number (18493929).

Almost surely, 2^123292830 is an apocalyptic number.

123292830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123292830 is an abundant number, since it is smaller than the sum of its proper divisors (172610034).

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

123292830 is a wasteful number, since it uses less digits than its factorization.

123292830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109771.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 123292830 is about 11103.7304542212. The cubic root of 123292830 is about 497.7133315705.

The spelling of 123292830 in words is "one hundred twenty-three million, two hundred ninety-two thousand, eight hundred thirty".