1311222332403 has 16 divisors (see below), whose sum is σ = 1948117668000. Its totient is φ = 871643492640.

The previous prime is 1311222332393. The next prime is 1311222332417. The reversal of 1311222332403 is 3042332221131.

1311222332403 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 2 + 223 + 32 + 403 = 666.

It is not a de Polignac number, because 1311222332403 - 2⁶ = 1311222332339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1311222332473) 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, 69566208 + ... + 69585053.

It is an arithmetic number, because the mean of its divisors is an integer number (121757354250).

Almost surely, 2^{1311222332403} is an apocalyptic number.

1311222332403 is a deficient number, since it is larger than the sum of its proper divisors (636895335597).

1311222332403 is a wasteful number, since it uses less digits than its factorization.

1311222332403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139151619 (or 139151613 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1311222332403 its reverse (3042332221131), we get a palindrome (4353554553534).

The spelling of 1311222332403 in words is "one trillion, three hundred eleven billion, two hundred twenty-two million, three hundred thirty-two thousand, four hundred three".