1340241213123 has 64 divisors (see below), whose sum is σ = 2214534643200. Its totient is φ = 796119321600.

The previous prime is 1340241213119. The next prime is 1340241213197. The reversal of 1340241213123 is 3213121420431.

1340241213123 is a `hidden beast` number, since 1 + 3 + 402 + 41 + 213 + 1 + 2 + 3 = 666.

It is not a de Polignac number, because 1340241213123 - 2² = 1340241213119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1340241213023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12601215 + ... + 12707127.

It is an arithmetic number, because the mean of its divisors is an integer number (34602103800).

Almost surely, 2^{1340241213123} is an apocalyptic number.

1340241213123 is a deficient number, since it is larger than the sum of its proper divisors (874293430077).

1340241213123 is a wasteful number, since it uses less digits than its factorization.

1340241213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107409 (or 107403 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1340241213123 its reverse (3213121420431), we get a palindrome (4553362633554).

The spelling of 1340241213123 in words is "one trillion, three hundred forty billion, two hundred forty-one million, two hundred thirteen thousand, one hundred twenty-three".