20632011 has 8 divisors (see below), whose sum is σ = 27654144. Its totient is φ = 13682280.

The previous prime is 20631991. The next prime is 20632037. The reversal of 20632011 is 11023602.

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

It is not a de Polignac number, because 20632011 - 2¹⁷ = 20500939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20632111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17431 + ... + 18576.

It is an arithmetic number, because the mean of its divisors is an integer number (3456768).

Almost surely, 2^20632011 is an apocalyptic number.

20632011 is a deficient number, since it is larger than the sum of its proper divisors (7022133).

20632011 is a wasteful number, since it uses less digits than its factorization.

20632011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36201.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 20632011 is about 4542.2473512569. The cubic root of 20632011 is about 274.2713980236.

Adding to 20632011 its reverse (11023602), we get a palindrome (31655613).

The spelling of 20632011 in words is "twenty million, six hundred thirty-two thousand, eleven".