1020201202073 has 2 divisors, whose sum is σ = 1020201202074. Its totient is φ = 1020201202072.

The previous prime is 1020201201979. The next prime is 1020201202081. The reversal of 1020201202073 is 3702021020201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 987733847104 + 32467354969 = 993848^2 + 180187^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020201202073 - 2¹⁰ = 1020201201049 is a prime.

It is a super-2 number, since 2×1020201202073² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1020201201073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510100601036 + 510100601037.

It is an arithmetic number, because the mean of its divisors is an integer number (510100601037).

Almost surely, 2^{1020201202073} is an apocalyptic number.

It is an amenable number.

1020201202073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020201202073 is an equidigital number, since it uses as much as digits as its factorization.

1020201202073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 1020201202073 its reverse (3702021020201), we get a palindrome (4722222222274).

The spelling of 1020201202073 in words is "one trillion, twenty billion, two hundred one million, two hundred two thousand, seventy-three".