1231031300122 has 32 divisors (see below), whose sum is σ = 1991205936720. Its totient is φ = 567421009920.

The previous prime is 1231031300117. The next prime is 1231031300201. The reversal of 1231031300122 is 2210031301321.

It can be written as a sum of positive squares in 8 ways, for example, as 789522879601 + 441508420521 = 888551^2 + 664461^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1231031300122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101221722 + ... + 101233882.

Almost surely, 2^{1231031300122} is an apocalyptic number.

1231031300122 is a deficient number, since it is larger than the sum of its proper divisors (760174636598).

1231031300122 is a wasteful number, since it uses less digits than its factorization.

1231031300122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16978.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1231031300122 its reverse (2210031301321), we get a palindrome (3441062601443).

The spelling of 1231031300122 in words is "one trillion, two hundred thirty-one billion, thirty-one million, three hundred thousand, one hundred twenty-two".