1021341342 has 16 divisors (see below), whose sum is σ = 2334494592. Its totient is φ = 291811800.

The previous prime is 1021341341. The next prime is 1021341359. The reversal of 1021341342 is 2431431201.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021341341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12158784 + ... + 12158867.

It is an arithmetic number, because the mean of its divisors is an integer number (145905912).

Almost surely, 2^1021341342 is an apocalyptic number.

1021341342 is an abundant number, since it is smaller than the sum of its proper divisors (1313153250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021341342 is a wasteful number, since it uses less digits than its factorization.

1021341342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24317663.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1021341342 is about 31958.4314696451. The cubic root of 1021341342 is about 1007.0637663847.

Adding to 1021341342 its reverse (2431431201), we get a palindrome (3452772543).

The spelling of 1021341342 in words is "one billion, twenty-one million, three hundred forty-one thousand, three hundred forty-two".