20111313441 has 4 divisors (see below), whose sum is σ = 26815084592. Its totient is φ = 13407542292.

The previous prime is 20111313403. The next prime is 20111313461. The reversal of 20111313441 is 14431311102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20111313441 - 2¹¹ = 20111311393 is a prime.

It is a super-3 number, since 3×20111313441³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111313461) 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, 3351885571 + ... + 3351885576.

It is an arithmetic number, because the mean of its divisors is an integer number (6703771148).

Almost surely, 2^20111313441 is an apocalyptic number.

It is an amenable number.

20111313441 is a deficient number, since it is larger than the sum of its proper divisors (6703771151).

20111313441 is an equidigital number, since it uses as much as digits as its factorization.

20111313441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703771150.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20111313441 its reverse (14431311102), we get a palindrome (34542624543).

The spelling of 20111313441 in words is "twenty billion, one hundred eleven million, three hundred thirteen thousand, four hundred forty-one".