123012032200 has 48 divisors (see below), whose sum is σ = 287066308500. Its totient is φ = 49021873920.

The previous prime is 123012032173. The next prime is 123012032237. The reversal of 123012032200 is 2230210321.

It can be written as a sum of positive squares in 6 ways, for example, as 7780298436 + 115231733764 = 88206^2 + 339458^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1089435 + ... + 1197034.

Almost surely, 2^123012032200 is an apocalyptic number.

123012032200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123012032200 is an abundant number, since it is smaller than the sum of its proper divisors (164054276300).

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

123012032200 is a wasteful number, since it uses less digits than its factorization.

123012032200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286754 (or 2286745 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 123012032200 its reverse (2230210321), we get a palindrome (125242242521).

The spelling of 123012032200 in words is "one hundred twenty-three billion, twelve million, thirty-two thousand, two hundred".