1210031310043 has 4 divisors (see below), whose sum is σ = 1210051312240. Its totient is φ = 1210011307848.

The previous prime is 1210031309957. The next prime is 1210031310067. The reversal of 1210031310043 is 3400131300121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210031310043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1210031310043.

It is not an unprimeable number, because it can be changed into a prime (1210031310143) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 9910080 + ... + 10031437.

It is an arithmetic number, because the mean of its divisors is an integer number (302512828060).

Almost surely, 2^{1210031310043} is an apocalyptic number.

1210031310043 is a deficient number, since it is larger than the sum of its proper divisors (20002197).

1210031310043 is an equidigital number, since it uses as much as digits as its factorization.

1210031310043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20002196.

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

Adding to 1210031310043 its reverse (3400131300121), we get a palindrome (4610162610164).

The spelling of 1210031310043 in words is "one trillion, two hundred ten billion, thirty-one million, three hundred ten thousand, forty-three".