1020320342 has 32 divisors (see below), whose sum is σ = 1646507520. Its totient is φ = 473014080.

The previous prime is 1020320341. The next prime is 1020320351. The reversal of 1020320342 is 2430230201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020320342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020320341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305759 + ... + 309077.

It is an arithmetic number, because the mean of its divisors is an integer number (51453360).

Almost surely, 2^1020320342 is an apocalyptic number.

1020320342 is a deficient number, since it is larger than the sum of its proper divisors (626187178).

1020320342 is a wasteful number, since it uses less digits than its factorization.

1020320342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1020320342 is about 31942.4536001854. The cubic root of 1020320342 is about 1006.7280787693.

Adding to 1020320342 its reverse (2430230201), we get a palindrome (3450550543).

The spelling of 1020320342 in words is "one billion, twenty million, three hundred twenty thousand, three hundred forty-two".