123200030 has 16 divisors (see below), whose sum is σ = 224253360. Its totient is φ = 48725952.

The previous prime is 123200023. The next prime is 123200041. The reversal of 123200030 is 30002321.

It is a junction number, because it is equal to n+sod(n) for n = 123199984 and 123200020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68324 + ... + 70103.

It is an arithmetic number, because the mean of its divisors is an integer number (14015835).

Almost surely, 2^123200030 is an apocalyptic number.

123200030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123200030 is a deficient number, since it is larger than the sum of its proper divisors (101053330).

123200030 is a wasteful number, since it uses less digits than its factorization.

123200030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138523.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 123200030 is about 11099.5508918154. The cubic root of 123200030 is about 497.5884273345.

Adding to 123200030 its reverse (30002321), we get a palindrome (153202351).

The spelling of 123200030 in words is "one hundred twenty-three million, two hundred thousand, thirty".