20111301132 has 24 divisors (see below), whose sum is σ = 50536090416. Its totient is φ = 6188092608.

The previous prime is 20111301113. The next prime is 20111301137. The reversal of 20111301132 is 23110311102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20111301137) 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, 64459143 + ... + 64459454.

It is an arithmetic number, because the mean of its divisors is an integer number (2105670434).

Almost surely, 2^20111301132 is an apocalyptic number.

It is an amenable number.

20111301132 is an abundant number, since it is smaller than the sum of its proper divisors (30424789284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20111301132 is a wasteful number, since it uses less digits than its factorization.

20111301132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128918617 (or 128918615 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20111301132 its reverse (23110311102), we get a palindrome (43221612234).

The spelling of 20111301132 in words is "twenty billion, one hundred eleven million, three hundred one thousand, one hundred thirty-two".