1011020200011 has 32 divisors (see below), whose sum is σ = 1514001614400. Its totient is φ = 666746277120.

The previous prime is 1011020199997. The next prime is 1011020200049. The reversal of 1011020200011 is 1100020201101.

It is a happy number.

It is not a de Polignac number, because 1011020200011 - 2⁹ = 1011020199499 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 1011020199966 and 1011020200002.

It is not an unprimeable number, because it can be changed into a prime (1011020205011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1537441 + ... + 2094221.

It is an arithmetic number, because the mean of its divisors is an integer number (47312550450).

Almost surely, 2^{1011020200011} is an apocalyptic number.

1011020200011 is a deficient number, since it is larger than the sum of its proper divisors (502981414389).

1011020200011 is a wasteful number, since it uses less digits than its factorization.

1011020200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557516 (or 557510 counting only the distinct ones).

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

Adding to 1011020200011 its reverse (1100020201101), we get a palindrome (2111040401112).

The spelling of 1011020200011 in words is "one trillion, eleven billion, twenty million, two hundred thousand, eleven".