11020220431013 has 2 divisors, whose sum is σ = 11020220431014. Its totient is φ = 11020220431012.

The previous prime is 11020220430991. The next prime is 11020220431127. The reversal of 11020220431013 is 31013402202011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8220732621124 + 2799487809889 = 2867182^2 + 1673167^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020220431013 - 2¹⁰ = 11020220429989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020220437013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510110215506 + 5510110215507.

It is an arithmetic number, because the mean of its divisors is an integer number (5510110215507).

Almost surely, 2^{11020220431013} is an apocalyptic number.

It is an amenable number.

11020220431013 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020220431013 is an equidigital number, since it uses as much as digits as its factorization.

11020220431013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11020220431013 its reverse (31013402202011), we get a palindrome (42033622633024).

The spelling of 11020220431013 in words is "eleven trillion, twenty billion, two hundred twenty million, four hundred thirty-one thousand, thirteen".