11020000012013 has 4 divisors (see below), whose sum is σ = 11021280076380. Its totient is φ = 11018719947648.

The previous prime is 11020000012009. The next prime is 11020000012051. The reversal of 11020000012013 is 31021000002011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6580774351204 + 4439225660809 = 2565302^2 + 2106947^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020000012013 - 2² = 11020000012009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020000011985 and 11020000012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020000062013) 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, 640019270 + ... + 640036487.

It is an arithmetic number, because the mean of its divisors is an integer number (2755320019095).

Almost surely, 2^{11020000012013} is an apocalyptic number.

It is an amenable number.

11020000012013 is a deficient number, since it is larger than the sum of its proper divisors (1280064367).

11020000012013 is an equidigital number, since it uses as much as digits as its factorization.

11020000012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280064366.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11020000012013 its reverse (31021000002011), we get a palindrome (42041000014024).

The spelling of 11020000012013 in words is "eleven trillion, twenty billion, twelve thousand, thirteen".