1311062326143 has 4 divisors (see below), whose sum is σ = 1748083101528. Its totient is φ = 874041550760.

The previous prime is 1311062326129. The next prime is 1311062326157. The reversal of 1311062326143 is 3416232601131.

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

It is an interprime number because it is at equal distance from previous prime (1311062326129) and next prime (1311062326157).

It is a cyclic number.

It is not a de Polignac number, because 1311062326143 - 2⁴ = 1311062326127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311062326163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218510387688 + ... + 218510387693.

It is an arithmetic number, because the mean of its divisors is an integer number (437020775382).

Almost surely, 2^{1311062326143} is an apocalyptic number.

1311062326143 is a deficient number, since it is larger than the sum of its proper divisors (437020775385).

1311062326143 is an equidigital number, since it uses as much as digits as its factorization.

1311062326143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437020775384.

The product of its (nonzero) digits is 15552, while the sum is 33.

Adding to 1311062326143 its reverse (3416232601131), we get a palindrome (4727294927274).

The spelling of 1311062326143 in words is "one trillion, three hundred eleven billion, sixty-two million, three hundred twenty-six thousand, one hundred forty-three".