20111132134 has 4 divisors (see below), whose sum is σ = 30166698204. Its totient is φ = 10055566066.

The previous prime is 20111132113. The next prime is 20111132189. The reversal of 20111132134 is 43123111102.

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

It is a super-2 number, since 2×20111132134² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027783032 + ... + 5027783035.

It is an arithmetic number, because the mean of its divisors is an integer number (7541674551).

Almost surely, 2^20111132134 is an apocalyptic number.

20111132134 is a deficient number, since it is larger than the sum of its proper divisors (10055566070).

20111132134 is a wasteful number, since it uses less digits than its factorization.

20111132134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055566069.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20111132134 its reverse (43123111102), we get a palindrome (63234243236).

The spelling of 20111132134 in words is "twenty billion, one hundred eleven million, one hundred thirty-two thousand, one hundred thirty-four".