1311226231151 has 8 divisors (see below), whose sum is σ = 1368878784480. Its totient is φ = 1253627237632.

The previous prime is 1311226231127. The next prime is 1311226231181. The reversal of 1311226231151 is 1511326221131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311226231151 - 2¹⁸ = 1311225969007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311226231181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13339910 + ... + 13437843.

It is an arithmetic number, because the mean of its divisors is an integer number (171109848060).

Almost surely, 2^{1311226231151} is an apocalyptic number.

1311226231151 is a deficient number, since it is larger than the sum of its proper divisors (57652553329).

1311226231151 is a wasteful number, since it uses less digits than its factorization.

1311226231151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26779905.

The product of its digits is 2160, while the sum is 29.

The spelling of 1311226231151 in words is "one trillion, three hundred eleven billion, two hundred twenty-six million, two hundred thirty-one thousand, one hundred fifty-one".