1311420111131 has 8 divisors (see below), whose sum is σ = 1413174176400. Its totient is φ = 1209791130912.

The previous prime is 1311420111121. The next prime is 1311420111137. The reversal of 1311420111131 is 1311110241131.

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

It is not a de Polignac number, because 1311420111131 - 2¹⁰ = 1311420110107 is a prime.

It is a super-2 number, since 2×1311420111131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311420111137) 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, 31249481 + ... + 31291418.

It is an arithmetic number, because the mean of its divisors is an integer number (176646772050).

Almost surely, 2^{1311420111131} is an apocalyptic number.

1311420111131 is a deficient number, since it is larger than the sum of its proper divisors (101754065269).

1311420111131 is a wasteful number, since it uses less digits than its factorization.

1311420111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62542525.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 1311420111131 its reverse (1311110241131), we get a palindrome (2622530352262).

The spelling of 1311420111131 in words is "one trillion, three hundred eleven billion, four hundred twenty million, one hundred eleven thousand, one hundred thirty-one".