1311502243226 has 128 divisors (see below), whose sum is σ = 2624280145920. Its totient is φ = 477635761152.

The previous prime is 1311502243211. The next prime is 1311502243237. The reversal of 1311502243226 is 6223422051131.

It is a junction number, because it is equal to n+sod(n) for n = 1311502243192 and 1311502243201.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28786901 + ... + 28832423.

It is an arithmetic number, because the mean of its divisors is an integer number (20502188640).

Almost surely, 2^{1311502243226} is an apocalyptic number.

1311502243226 is an abundant number, since it is smaller than the sum of its proper divisors (1312777902694).

1311502243226 is a wasteful number, since it uses less digits than its factorization.

1311502243226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45868.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 1311502243226 its reverse (6223422051131), we get a palindrome (7534924294357).

The spelling of 1311502243226 in words is "one trillion, three hundred eleven billion, five hundred two million, two hundred forty-three thousand, two hundred twenty-six".