1340113042 has 4 divisors (see below), whose sum is σ = 2010169566. Its totient is φ = 670056520.

The previous prime is 1340113037. The next prime is 1340113057. The reversal of 1340113042 is 2403110431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2403110431 = 13729 ⋅175039.

It can be written as a sum of positive squares in only one way, i.e., 1327217761 + 12895281 = 36431^2 + 3591^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335028259 + ... + 335028262.

Almost surely, 2^1340113042 is an apocalyptic number.

1340113042 is a deficient number, since it is larger than the sum of its proper divisors (670056524).

1340113042 is an equidigital number, since it uses as much as digits as its factorization.

1340113042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670056523.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1340113042 is about 36607.5544389406. The cubic root of 1340113042 is about 1102.5047720308.

Adding to 1340113042 its reverse (2403110431), we get a palindrome (3743223473).

The spelling of 1340113042 in words is "one billion, three hundred forty million, one hundred thirteen thousand, forty-two".