1211122313413 has 16 divisors (see below), whose sum is σ = 1270794871296. Its totient is φ = 1152791133120.

The previous prime is 1211122313399. The next prime is 1211122313417. The reversal of 1211122313413 is 3143132211121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211122313413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211122313417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909795 + ... + 1802767.

It is an arithmetic number, because the mean of its divisors is an integer number (79424679456).

Almost surely, 2^{1211122313413} is an apocalyptic number.

It is an amenable number.

1211122313413 is a deficient number, since it is larger than the sum of its proper divisors (59672557883).

1211122313413 is an equidigital number, since it uses as much as digits as its factorization.

1211122313413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893724.

The product of its digits is 864, while the sum is 25.

Adding to 1211122313413 its reverse (3143132211121), we get a palindrome (4354254524534).

The spelling of 1211122313413 in words is "one trillion, two hundred eleven billion, one hundred twenty-two million, three hundred thirteen thousand, four hundred thirteen".