20301212132 has 12 divisors (see below), whose sum is σ = 35530535040. Its totient is φ = 10149630696.

The previous prime is 20301212089. The next prime is 20301212137. The reversal of 20301212132 is 23121210302.

It is a self number, because there is not a number n which added to its sum of digits gives 20301212132.

It is not an unprimeable number, because it can be changed into a prime (20301212137) 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, 195968 + ... + 281079.

It is an arithmetic number, because the mean of its divisors is an integer number (2960877920).

Almost surely, 2^20301212132 is an apocalyptic number.

It is an amenable number.

20301212132 is a deficient number, since it is larger than the sum of its proper divisors (15229322908).

20301212132 is a wasteful number, since it uses less digits than its factorization.

20301212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487690 (or 487688 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20301212132 its reverse (23121210302), we get a palindrome (43422422434).

The spelling of 20301212132 in words is "twenty billion, three hundred one million, two hundred twelve thousand, one hundred thirty-two".