1311045240141 has 36 divisors (see below), whose sum is σ = 2372367587772. Its totient is φ = 691540343424.

The previous prime is 1311045240049. The next prime is 1311045240157. The reversal of 1311045240141 is 1410425401131.

It is a happy number.

1311045240141 is a `hidden beast` number, since 1 + 31 + 1 + 0 + 452 + 40 + 141 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 55814062500 + 1255231177641 = 236250^2 + 1120371^2 .

It is not a de Polignac number, because 1311045240141 - 2¹¹ = 1311045238093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311045240161) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 114336256 + ... + 114347721.

Almost surely, 2^{1311045240141} is an apocalyptic number.

It is an amenable number.

1311045240141 is a deficient number, since it is larger than the sum of its proper divisors (1061322347631).

1311045240141 is a wasteful number, since it uses less digits than its factorization.

1311045240141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228684010 (or 228684000 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The spelling of 1311045240141 in words is "one trillion, three hundred eleven billion, forty-five million, two hundred forty thousand, one hundred forty-one".