1311441011145 has 96 divisors (see below), whose sum is σ = 2332878941952. Its totient is φ = 681323360256.

The previous prime is 1311441011143. The next prime is 1311441011183. The reversal of 1311441011145 is 5411101441131.

1311441011145 is a `hidden beast` number, since 131 + 1 + 4 + 410 + 1 + 114 + 5 = 666.

It is not a de Polignac number, because 1311441011145 - 2¹ = 1311441011143 is a prime.

It is a super-2 number, since 2×1311441011145² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311441011143) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 155693404 + ... + 155701826.

It is an arithmetic number, because the mean of its divisors is an integer number (24300822312).

Almost surely, 2^{1311441011145} is an apocalyptic number.

1311441011145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1311441011145 is a deficient number, since it is larger than the sum of its proper divisors (1021437930807).

1311441011145 is a wasteful number, since it uses less digits than its factorization.

1311441011145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9071 (or 9068 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

Adding to 1311441011145 its reverse (5411101441131), we get a palindrome (6722542452276).

The spelling of 1311441011145 in words is "one trillion, three hundred eleven billion, four hundred forty-one million, eleven thousand, one hundred forty-five".