1022321542142 has 4 divisors (see below), whose sum is σ = 1533482313216. Its totient is φ = 511160771070.

The previous prime is 1022321542133. The next prime is 1022321542147. The reversal of 1022321542142 is 2412451232201.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022321542147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255580385534 + ... + 255580385537.

It is an arithmetic number, because the mean of its divisors is an integer number (383370578304).

Almost surely, 2^{1022321542142} is an apocalyptic number.

1022321542142 is a deficient number, since it is larger than the sum of its proper divisors (511160771074).

1022321542142 is an equidigital number, since it uses as much as digits as its factorization.

1022321542142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511160771073.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 1022321542142 its reverse (2412451232201), we get a palindrome (3434772774343).

The spelling of 1022321542142 in words is "one trillion, twenty-two billion, three hundred twenty-one million, five hundred forty-two thousand, one hundred forty-two".