1311433242101 has 4 divisors (see below), whose sum is σ = 1313762608992. Its totient is φ = 1309103875212.

The previous prime is 1311433242059. The next prime is 1311433242121. The reversal of 1311433242101 is 1012423341131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1311433242101 - 2²⁶ = 1311366133237 is a prime.

It is a super-4 number, since 4×1311433242101⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311433242121) 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, 1164682601 + ... + 1164683726.

It is an arithmetic number, because the mean of its divisors is an integer number (328440652248).

Almost surely, 2^{1311433242101} is an apocalyptic number.

It is an amenable number.

1311433242101 is a deficient number, since it is larger than the sum of its proper divisors (2329366891).

1311433242101 is an equidigital number, since it uses as much as digits as its factorization.

1311433242101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329366890.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 1311433242101 its reverse (1012423341131), we get a palindrome (2323856583232).

The spelling of 1311433242101 in words is "one trillion, three hundred eleven billion, four hundred thirty-three million, two hundred forty-two thousand, one hundred one".