20111632103 has 4 divisors (see below), whose sum is σ = 20111924760. Its totient is φ = 20111339448.

The previous prime is 20111632087. The next prime is 20111632127. The reversal of 20111632103 is 30123611102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20111632103 - 2⁴ = 20111632087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111632003) 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, 19076 + ... + 201462.

It is an arithmetic number, because the mean of its divisors is an integer number (5027981190).

Almost surely, 2^20111632103 is an apocalyptic number.

20111632103 is a deficient number, since it is larger than the sum of its proper divisors (292657).

20111632103 is a wasteful number, since it uses less digits than its factorization.

20111632103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292656.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 20111632103 in words is "twenty billion, one hundred eleven million, six hundred thirty-two thousand, one hundred three".