21000311114 has 4 divisors (see below), whose sum is σ = 31500466674. Its totient is φ = 10500155556.

The previous prime is 21000311107. The next prime is 21000311159. The reversal of 21000311114 is 41111300012.

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

It can be written as a sum of positive squares in only one way, i.e., 15235705489 + 5764605625 = 123433^2 + 75925^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250077777 + ... + 5250077780.

Almost surely, 2^21000311114 is an apocalyptic number.

21000311114 is a deficient number, since it is larger than the sum of its proper divisors (10500155560).

21000311114 is a wasteful number, since it uses less digits than its factorization.

21000311114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10500155559.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21000311114 its reverse (41111300012), we get a palindrome (62111611126).

The spelling of 21000311114 in words is "twenty-one billion, three hundred eleven thousand, one hundred fourteen".