123011331200 has 96 divisors (see below), whose sum is σ = 308858500020. Its totient is φ = 48397824000.

The previous prime is 123011331199. The next prime is 123011331263. The reversal of 123011331200 is 2133110321.

It can be written as a sum of positive squares in 6 ways, for example, as 1201216 + 123010129984 = 1096^2 + 350728^2 .

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, 119891 + ... + 510290.

Almost surely, 2^123011331200 is an apocalyptic number.

123011331200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123011331200 is an abundant number, since it is smaller than the sum of its proper divisors (185847168820).

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

123011331200 is an equidigital number, since it uses as much as digits as its factorization.

123011331200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630266 (or 630249 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123011331200 its reverse (2133110321), we get a palindrome (125144441521).

The spelling of 123011331200 in words is "one hundred twenty-three billion, eleven million, three hundred thirty-one thousand, two hundred".