20303121132 has 72 divisors (see below), whose sum is σ = 58668646400. Its totient is φ = 5799390048.

The previous prime is 20303121109. The next prime is 20303121229. The reversal of 20303121132 is 23112130302.

It is a super-2 number, since 2×20303121132² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1282119 + ... + 1297857.

Almost surely, 2^20303121132 is an apocalyptic number.

It is an amenable number.

20303121132 is an abundant number, since it is smaller than the sum of its proper divisors (38365525268).

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

20303121132 is a wasteful number, since it uses less digits than its factorization.

20303121132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20875 (or 20870 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20303121132 its reverse (23112130302), we get a palindrome (43415251434).

The spelling of 20303121132 in words is "twenty billion, three hundred three million, one hundred twenty-one thousand, one hundred thirty-two".