1311403221422 has 64 divisors (see below), whose sum is σ = 2384673177600. Its totient is φ = 528012435456.

The previous prime is 1311403221409. The next prime is 1311403221449. The reversal of 1311403221422 is 2241223041131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1311403221391 and 1311403221400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 546644579 + ... + 546646977.

It is an arithmetic number, because the mean of its divisors is an integer number (37260518400).

Almost surely, 2^{1311403221422} is an apocalyptic number.

1311403221422 is a deficient number, since it is larger than the sum of its proper divisors (1073269956178).

1311403221422 is a wasteful number, since it uses less digits than its factorization.

1311403221422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5625.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1311403221422 its reverse (2241223041131), we get a palindrome (3552626262553).

The spelling of 1311403221422 in words is "one trillion, three hundred eleven billion, four hundred three million, two hundred twenty-one thousand, four hundred twenty-two".