123311100200 has 24 divisors (see below), whose sum is σ = 286698308430. Its totient is φ = 49324440000.

The previous prime is 123311100179. The next prime is 123311100221. The reversal of 123311100200 is 2001113321.

It is an interprime number because it is at equal distance from previous prime (123311100179) and next prime (123311100221).

It can be written as a sum of positive squares in 3 ways, for example, as 98758090564 + 24553009636 = 314258^2 + 156694^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308277551 + ... + 308277950.

Almost surely, 2^123311100200 is an apocalyptic number.

123311100200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123311100200 is an abundant number, since it is smaller than the sum of its proper divisors (163387208230).

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

123311100200 is a wasteful number, since it uses less digits than its factorization.

123311100200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616555517 (or 616555508 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 123311100200 its reverse (2001113321), we get a palindrome (125312213521).

The spelling of 123311100200 in words is "one hundred twenty-three billion, three hundred eleven million, one hundred thousand, two hundred".