1231200300122 has 16 divisors (see below), whose sum is σ = 2105853907752. Its totient is φ = 534820039680.

The previous prime is 1231200300107. The next prime is 1231200300151. The reversal of 1231200300122 is 2210030021321.

It can be written as a sum of positive squares in 4 ways, for example, as 809857806241 + 421342493881 = 899921^2 + 649109^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1231200300122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1392760079 + ... + 1392760962.

Almost surely, 2^{1231200300122} is an apocalyptic number.

1231200300122 is a deficient number, since it is larger than the sum of its proper divisors (874653607630).

1231200300122 is a wasteful number, since it uses less digits than its factorization.

1231200300122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785521073.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1231200300122 its reverse (2210030021321), we get a palindrome (3441230321443).

The spelling of 1231200300122 in words is "one trillion, two hundred thirty-one billion, two hundred million, three hundred thousand, one hundred twenty-two".