1210031323012 has 6 divisors (see below), whose sum is σ = 2117554815278. Its totient is φ = 605015661504.

The previous prime is 1210031323009. The next prime is 1210031323021. The reversal of 1210031323012 is 2103231300121.

It can be written as a sum of positive squares in only one way, i.e., 896021269056 + 314010053956 = 946584^2 + 560366^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151253915373 + ... + 151253915380.

Almost surely, 2^{1210031323012} is an apocalyptic number.

It is an amenable number.

1210031323012 is a deficient number, since it is larger than the sum of its proper divisors (907523492266).

1210031323012 is a wasteful number, since it uses less digits than its factorization.

1210031323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302507830757 (or 302507830755 counting only the distinct ones).

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

Adding to 1210031323012 its reverse (2103231300121), we get a palindrome (3313262623133).

The spelling of 1210031323012 in words is "one trillion, two hundred ten billion, thirty-one million, three hundred twenty-three thousand, twelve".