1023321042 has 48 divisors (see below), whose sum is σ = 2245201920. Its totient is φ = 336825216.

The previous prime is 1023321029. The next prime is 1023321053. The reversal of 1023321042 is 2401233201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 545418 + ... + 547290.

It is an arithmetic number, because the mean of its divisors is an integer number (46775040).

Almost surely, 2^1023321042 is an apocalyptic number.

1023321042 is an abundant number, since it is smaller than the sum of its proper divisors (1221880878).

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

1023321042 is a wasteful number, since it uses less digits than its factorization.

1023321042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247 (or 2244 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1023321042 is about 31989.3895221525. The cubic root of 1023321042 is about 1007.7140215280.

Adding to 1023321042 its reverse (2401233201), we get a palindrome (3424554243).

The spelling of 1023321042 in words is "one billion, twenty-three million, three hundred twenty-one thousand, forty-two".