20321201130 has 32 divisors (see below), whose sum is σ = 48829915584. Its totient is φ = 5412427776.

The previous prime is 20321201129. The next prime is 20321201137. The reversal of 20321201130 is 3110212302.

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 (20321201137) 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, 384727 + ... + 434346.

It is an arithmetic number, because the mean of its divisors is an integer number (1525934862).

Almost surely, 2^20321201130 is an apocalyptic number.

20321201130 is an abundant number, since it is smaller than the sum of its proper divisors (28508714454).

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

20321201130 is a wasteful number, since it uses less digits than its factorization.

20321201130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819910.

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

Adding to 20321201130 its reverse (3110212302), we get a palindrome (23431413432).

The spelling of 20321201130 in words is "twenty billion, three hundred twenty-one million, two hundred one thousand, one hundred thirty".