1020204143801 has 2 divisors, whose sum is σ = 1020204143802. Its totient is φ = 1020204143800.

The previous prime is 1020204143797. The next prime is 1020204143839. The reversal of 1020204143801 is 1083414020201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 848427052201 + 171777091600 = 921101^2 + 414460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020204143801 - 2² = 1020204143797 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020204149801) 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, 510102071900 + 510102071901.

It is an arithmetic number, because the mean of its divisors is an integer number (510102071901).

Almost surely, 2^{1020204143801} is an apocalyptic number.

It is an amenable number.

1020204143801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020204143801 is an equidigital number, since it uses as much as digits as its factorization.

1020204143801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The spelling of 1020204143801 in words is "one trillion, twenty billion, two hundred four million, one hundred forty-three thousand, eight hundred one".