1011403820211 has 4 divisors (see below), whose sum is σ = 1348538426952. Its totient is φ = 674269213472.

The previous prime is 1011403820201. The next prime is 1011403820213. The reversal of 1011403820211 is 1120283041101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1011403820211 - 2²³ = 1011395431603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011403820213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168567303366 + ... + 168567303371.

It is an arithmetic number, because the mean of its divisors is an integer number (337134606738).

Almost surely, 2^{1011403820211} is an apocalyptic number.

1011403820211 is a deficient number, since it is larger than the sum of its proper divisors (337134606741).

1011403820211 is an equidigital number, since it uses as much as digits as its factorization.

1011403820211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337134606740.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 1011403820211 its reverse (1120283041101), we get a palindrome (2131686861312).

The spelling of 1011403820211 in words is "one trillion, eleven billion, four hundred three million, eight hundred twenty thousand, two hundred eleven".