1200123300025 has 24 divisors (see below), whose sum is σ = 1603961122904. Its totient is φ = 885506688000.

The previous prime is 1200123299957. The next prime is 1200123300031. The reversal of 1200123300025 is 5200033210021.

It can be written as a sum of positive squares in 12 ways, for example, as 745868867769 + 454254432256 = 863637^2 + 673984^2 .

It is not a de Polignac number, because 1200123300025 - 2³¹ = 1197975816377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200123299975 and 1200123300011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1147014 + ... + 1927663.

Almost surely, 2^{1200123300025} is an apocalyptic number.

It is an amenable number.

1200123300025 is a deficient number, since it is larger than the sum of its proper divisors (403837822879).

1200123300025 is a wasteful number, since it uses less digits than its factorization.

1200123300025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075901 (or 3075896 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 1200123300025 its reverse (5200033210021), we get a palindrome (6400156510046).

The spelling of 1200123300025 in words is "one trillion, two hundred billion, one hundred twenty-three million, three hundred thousand, twenty-five".