21032111130 has 32 divisors (see below), whose sum is σ = 50482885824. Its totient is φ = 5607916416.

The previous prime is 21032111077. The next prime is 21032111131. The reversal of 21032111130 is 3111123012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (21032111131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261022 + ... + 331958.

It is an arithmetic number, because the mean of its divisors is an integer number (1577590182).

Almost surely, 2^21032111130 is an apocalyptic number.

21032111130 is an abundant number, since it is smaller than the sum of its proper divisors (29450774694).

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

21032111130 is a wasteful number, since it uses less digits than its factorization.

21032111130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80830.

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

Adding to 21032111130 its reverse (3111123012), we get a palindrome (24143234142).

The spelling of 21032111130 in words is "twenty-one billion, thirty-two million, one hundred eleven thousand, one hundred thirty".