11020121319 has 4 divisors (see below), whose sum is σ = 14693495096. Its totient is φ = 7346747544.

The previous prime is 11020121309. The next prime is 11020121323. The reversal of 11020121319 is 91312102011.

It is a happy number.

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

It is not a de Polignac number, because 11020121319 - 2¹² = 11020117223 is a prime.

It is a super-2 number, since 2×11020121319² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020121295 and 11020121304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020121309) 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, 1836686884 + ... + 1836686889.

It is an arithmetic number, because the mean of its divisors is an integer number (3673373774).

Almost surely, 2^11020121319 is an apocalyptic number.

11020121319 is a deficient number, since it is larger than the sum of its proper divisors (3673373777).

11020121319 is an equidigital number, since it uses as much as digits as its factorization.

11020121319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673373776.

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 11020121319 in words is "eleven billion, twenty million, one hundred twenty-one thousand, three hundred nineteen".