1311131045013 has 8 divisors (see below), whose sum is σ = 1851008534208. Its totient is φ = 822670459584.

The previous prime is 1311131044991. The next prime is 1311131045089. The reversal of 1311131045013 is 3105401311131.

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

It is not a de Polignac number, because 1311131045013 - 2⁵ = 1311131044981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311131045093) 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, 12854225881 + ... + 12854225982.

It is an arithmetic number, because the mean of its divisors is an integer number (231376066776).

Almost surely, 2^{1311131045013} is an apocalyptic number.

It is an amenable number.

1311131045013 is a deficient number, since it is larger than the sum of its proper divisors (539877489195).

1311131045013 is a wasteful number, since it uses less digits than its factorization.

1311131045013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25708451883.

The product of its (nonzero) digits is 540, while the sum is 24.

Adding to 1311131045013 its reverse (3105401311131), we get a palindrome (4416532356144).

The spelling of 1311131045013 in words is "one trillion, three hundred eleven billion, one hundred thirty-one million, forty-five thousand, thirteen".