20111074 has 8 divisors (see below), whose sum is σ = 30902508. Its totient is φ = 9810240.

The previous prime is 20111071. The next prime is 20111081. The reversal of 20111074 is 47011102.

It can be written as a sum of positive squares in 2 ways, for example, as 16281225 + 3829849 = 4035^2 + 1957^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20111071) 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, 122547 + ... + 122710.

Almost surely, 2^20111074 is an apocalyptic number.

20111074 is a deficient number, since it is larger than the sum of its proper divisors (10791434).

20111074 is a wasteful number, since it uses less digits than its factorization.

20111074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245300.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 20111074 is about 4484.5372113519. The cubic root of 20111074 is about 271.9433363078.

Adding to 20111074 its reverse (47011102), we get a palindrome (67122176).

The spelling of 20111074 in words is "twenty million, one hundred eleven thousand, seventy-four".