1213122122303 has 16 divisors (see below), whose sum is σ = 1493298278976. Its totient is φ = 959688311040.

The previous prime is 1213122122293. The next prime is 1213122122353. The reversal of 1213122122303 is 3032212213121.

It is a cyclic number.

It is not a de Polignac number, because 1213122122303 - 2⁶ = 1213122122239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213122122353) 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 15 ways as a sum of consecutive naturals, for example, 394526 + ... + 1606827.

It is an arithmetic number, because the mean of its divisors is an integer number (93331142436).

Almost surely, 2^{1213122122303} is an apocalyptic number.

1213122122303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1213122122303 is a deficient number, since it is larger than the sum of its proper divisors (280176156673).

1213122122303 is a wasteful number, since it uses less digits than its factorization.

1213122122303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008034.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1213122122303 its reverse (3032212213121), we get a palindrome (4245334335424).

The spelling of 1213122122303 in words is "one trillion, two hundred thirteen billion, one hundred twenty-two million, one hundred twenty-two thousand, three hundred three".