1201303123200 has 324 divisors, whose sum is σ = 4547576428668. Its totient is φ = 301503283200.

The previous prime is 1201303123199. The next prime is 1201303123213. The reversal of 1201303123200 is 23213031021.

1201303123200 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 30 + 312 + 320 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 50506269696 + 1150796853504 = 224736^2 + 1072752^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 365790 + ... + 1592610.

Almost surely, 2^{1201303123200} is an apocalyptic number.

1201303123200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201303123200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2273788214334).

1201303123200 is an abundant number, since it is smaller than the sum of its proper divisors (3346273305468).

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

1201303123200 is a wasteful number, since it uses less digits than its factorization.

1201303123200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226870 (or 1226848 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1201303123200 its reverse (23213031021), we get a palindrome (1224516154221).

The spelling of 1201303123200 in words is "one trillion, two hundred one billion, three hundred three million, one hundred twenty-three thousand, two hundred".