20313321132 has 48 divisors (see below), whose sum is σ = 51067288832. Its totient is φ = 6247368000.

The previous prime is 20313321109. The next prime is 20313321151. The reversal of 20313321132 is 23112331302.

It is a super-2 number, since 2×20313321132² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20313321099 and 20313321108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322233 + ... + 380079.

Almost surely, 2^20313321132 is an apocalyptic number.

It is an amenable number.

20313321132 is an abundant number, since it is smaller than the sum of its proper divisors (30753967700).

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

20313321132 is a wasteful number, since it uses less digits than its factorization.

20313321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60118 (or 60116 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20313321132 its reverse (23112331302), we get a palindrome (43425652434).

The spelling of 20313321132 in words is "twenty billion, three hundred thirteen million, three hundred twenty-one thousand, one hundred thirty-two".