1021340342 has 16 divisors (see below), whose sum is σ = 1671786432. Its totient is φ = 464106120.

The previous prime is 1021340261. The next prime is 1021340371. The reversal of 1021340342 is 2430431201.

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, 116393 + ... + 124859.

It is an arithmetic number, because the mean of its divisors is an integer number (104486652).

Almost surely, 2^1021340342 is an apocalyptic number.

1021340342 is a deficient number, since it is larger than the sum of its proper divisors (650446090).

1021340342 is a wasteful number, since it uses less digits than its factorization.

1021340342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13963.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1021340342 is about 31958.4158243177. The cubic root of 1021340342 is about 1007.0634377110.

Adding to 1021340342 its reverse (2430431201), we get a palindrome (3451771543).

The spelling of 1021340342 in words is "one billion, twenty-one million, three hundred forty thousand, three hundred forty-two".