11020021393 has 2 divisors, whose sum is σ = 11020021394. Its totient is φ = 11020021392.

The previous prime is 11020021379. The next prime is 11020021409. The reversal of 11020021393 is 39312002011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8018844304 + 3001177089 = 89548^2 + 54783^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11020021393 is a prime.

It is not a weakly prime, because it can be changed into another prime (11020021193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510010696 + 5510010697.

It is an arithmetic number, because the mean of its divisors is an integer number (5510010697).

Almost surely, 2^11020021393 is an apocalyptic number.

It is an amenable number.

11020021393 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020021393 is an equidigital number, since it uses as much as digits as its factorization.

11020021393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 11020021393 in words is "eleven billion, twenty million, twenty-one thousand, three hundred ninety-three".