1311432606226 has 4 divisors (see below), whose sum is σ = 1967148909342. Its totient is φ = 655716303112.

The previous prime is 1311432606217. The next prime is 1311432606331. The reversal of 1311432606226 is 6226062341131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1239715230625 + 71717375601 = 1113425^2 + 267801^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327858151555 + ... + 327858151558.

Almost surely, 2^{1311432606226} is an apocalyptic number.

1311432606226 is a deficient number, since it is larger than the sum of its proper divisors (655716303116).

1311432606226 is an equidigital number, since it uses as much as digits as its factorization.

1311432606226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655716303115.

The product of its (nonzero) digits is 62208, while the sum is 37.

Adding to 1311432606226 its reverse (6226062341131), we get a palindrome (7537494947357).

The spelling of 1311432606226 in words is "one trillion, three hundred eleven billion, four hundred thirty-two million, six hundred six thousand, two hundred twenty-six".