1020204313042 has 4 divisors (see below), whose sum is σ = 1530306469566. Its totient is φ = 510102156520.

The previous prime is 1020204313033. The next prime is 1020204313097. The reversal of 1020204313042 is 2403134020201.

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

It can be written as a sum of positive squares in only one way, i.e., 718474921641 + 301729391401 = 847629^2 + 549299^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255051078259 + ... + 255051078262.

Almost surely, 2^{1020204313042} is an apocalyptic number.

1020204313042 is a deficient number, since it is larger than the sum of its proper divisors (510102156524).

1020204313042 is an equidigital number, since it uses as much as digits as its factorization.

1020204313042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510102156523.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1020204313042 its reverse (2403134020201), we get a palindrome (3423338333243).

The spelling of 1020204313042 in words is "one trillion, twenty billion, two hundred four million, three hundred thirteen thousand, forty-two".