1340442022123 has 8 divisors (see below), whose sum is σ = 1360926111888. Its totient is φ = 1320061127424.

The previous prime is 1340442022111. The next prime is 1340442022141. The reversal of 1340442022123 is 3212202440431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340442022123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340442022091 and 1340442022100.

It is not an unprimeable number, because it can be changed into a prime (1340442029123) 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, 25772590 + ... + 25824547.

It is an arithmetic number, because the mean of its divisors is an integer number (170115763986).

Almost surely, 2^{1340442022123} is an apocalyptic number.

1340442022123 is a deficient number, since it is larger than the sum of its proper divisors (20484089765).

1340442022123 is an equidigital number, since it uses as much as digits as its factorization.

1340442022123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51597533.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1340442022123 its reverse (3212202440431), we get a palindrome (4552644462554).

The spelling of 1340442022123 in words is "one trillion, three hundred forty billion, four hundred forty-two million, twenty-two thousand, one hundred twenty-three".