1011020200101 has 96 divisors (see below), whose sum is σ = 1607920995200. Its totient is φ = 609851773440.

The previous prime is 1011020200097. The next prime is 1011020200123. The reversal of 1011020200101 is 1010020201101.

It is a happy number.

It is not a de Polignac number, because 1011020200101 - 2² = 1011020200097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011020208101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 211110615 + ... + 211115403.

Almost surely, 2^{1011020200101} is an apocalyptic number.

It is an amenable number.

1011020200101 is a deficient number, since it is larger than the sum of its proper divisors (596900795099).

1011020200101 is a wasteful number, since it uses less digits than its factorization.

1011020200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5459 (or 5456 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1011020200101 its reverse (1010020201101), we get a palindrome (2021040401202).

It can be divided in two parts, 1011020 and 200101, that added together give a palindrome (1211121).

The spelling of 1011020200101 in words is "one trillion, eleven billion, twenty million, two hundred thousand, one hundred one".