1340123342 has 16 divisors (see below), whose sum is σ = 2039158800. Its totient is φ = 660416832.

The previous prime is 1340123303. The next prime is 1340123353. The reversal of 1340123342 is 2433210431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304268 + ... + 308640.

It is an arithmetic number, because the mean of its divisors is an integer number (127447425).

Almost surely, 2^1340123342 is an apocalyptic number.

1340123342 is a deficient number, since it is larger than the sum of its proper divisors (699035458).

1340123342 is a wasteful number, since it uses less digits than its factorization.

1340123342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1340123342 is about 36607.6951200154. The cubic root of 1340123342 is about 1102.5075966109.

Adding to 1340123342 its reverse (2433210431), we get a palindrome (3773333773).

The spelling of 1340123342 in words is "one billion, three hundred forty million, one hundred twenty-three thousand, three hundred forty-two".