1311241350123 has 8 divisors (see below), whose sum is σ = 1942579778000. Its totient is φ = 874160900064.

The previous prime is 1311241350061. The next prime is 1311241350131. The reversal of 1311241350123 is 3210531421131.

1311241350123 is a `hidden beast` number, since 1 + 3 + 1 + 124 + 13 + 501 + 23 = 666.

It is not a de Polignac number, because 1311241350123 - 2⁹ = 1311241349611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 48564494449 = 1311241350123 / (1 + 3 + 1 + 1 + 2 + 4 + 1 + 3 + 5 + 0 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311241350163) 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, 24282247198 + ... + 24282247251.

It is an arithmetic number, because the mean of its divisors is an integer number (242822472250).

Almost surely, 2^{1311241350123} is an apocalyptic number.

1311241350123 is a deficient number, since it is larger than the sum of its proper divisors (631338427877).

1311241350123 is an equidigital number, since it uses as much as digits as its factorization.

1311241350123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48564494458 (or 48564494452 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 1311241350123 its reverse (3210531421131), we get a palindrome (4521772771254).

The spelling of 1311241350123 in words is "one trillion, three hundred eleven billion, two hundred forty-one million, three hundred fifty thousand, one hundred twenty-three".