1226541311 has 2 divisors, whose sum is σ = 1226541312. Its totient is φ = 1226541310.

The previous prime is 1226541301. The next prime is 1226541343. The reversal of 1226541311 is 1131456221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226541311 - 2³⁰ = 152799487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226541301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613270655 + 613270656.

It is an arithmetic number, because the mean of its divisors is an integer number (613270656).

Almost surely, 2^1226541311 is an apocalyptic number.

1226541311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226541311 is an equidigital number, since it uses as much as digits as its factorization.

1226541311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 26.

The square root of 1226541311 is about 35022.0118068623. The cubic root of 1226541311 is about 1070.4360498935.

Adding to 1226541311 its reverse (1131456221), we get a palindrome (2357997532).

The spelling of 1226541311 in words is "one billion, two hundred twenty-six million, five hundred forty-one thousand, three hundred eleven".