1020212073 has 12 divisors (see below), whose sum is σ = 1490198580. Its totient is φ = 672498816.

The previous prime is 1020212071. The next prime is 1020212093. The reversal of 1020212073 is 3702120201.

It can be written as a sum of positive squares in 2 ways, for example, as 638673984 + 381538089 = 25272^2 + 19533^2 .

It is not a de Polignac number, because 1020212073 - 2¹ = 1020212071 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1020212071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 636036 + ... + 637637.

It is an arithmetic number, because the mean of its divisors is an integer number (124183215).

Almost surely, 2^1020212073 is an apocalyptic number.

It is an amenable number.

1020212073 is a deficient number, since it is larger than the sum of its proper divisors (469986507).

1020212073 is a wasteful number, since it uses less digits than its factorization.

1020212073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273768 (or 1273765 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1020212073 is about 31940.7588043866. The cubic root of 1020212073 is about 1006.6924686139.

Adding to 1020212073 its reverse (3702120201), we get a palindrome (4722332274).

The spelling of 1020212073 in words is "one billion, twenty million, two hundred twelve thousand, seventy-three".