123630620 has 12 divisors (see below), whose sum is σ = 259624344. Its totient is φ = 49452240.

The previous prime is 123630607. The next prime is 123630629. The reversal of 123630620 is 26036321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123630629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3090746 + ... + 3090785.

It is an arithmetic number, because the mean of its divisors is an integer number (21635362).

Almost surely, 2^123630620 is an apocalyptic number.

123630620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123630620 is an abundant number, since it is smaller than the sum of its proper divisors (135993724).

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

123630620 is a wasteful number, since it uses less digits than its factorization.

123630620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181540 (or 6181538 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 123630620 is about 11118.9307039841. The cubic root of 123630620 is about 498.1674517392.

Adding to 123630620 its reverse (26036321), we get a palindrome (149666941).

The spelling of 123630620 in words is "one hundred twenty-three million, six hundred thirty thousand, six hundred twenty".