123790030 has 32 divisors (see below), whose sum is σ = 274244544. Its totient is φ = 39177216.

The previous prime is 123790019. The next prime is 123790061. The reversal of 123790030 is 30097321.

It is a junction number, because it is equal to n+sod(n) for n = 123789977 and 123790004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67107 + ... + 68926.

It is an arithmetic number, because the mean of its divisors is an integer number (8570142).

Almost surely, 2^123790030 is an apocalyptic number.

123790030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123790030 is an abundant number, since it is smaller than the sum of its proper divisors (150454514).

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

123790030 is a wasteful number, since it uses less digits than its factorization.

123790030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136060.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 123790030 is about 11126.0967998665. The cubic root of 123790030 is about 498.3814730610.

The spelling of 123790030 in words is "one hundred twenty-three million, seven hundred ninety thousand, thirty".