20313020132 has 6 divisors (see below), whose sum is σ = 35547785238. Its totient is φ = 10156510064.

The previous prime is 20313020107. The next prime is 20313020237. The reversal of 20313020132 is 23102031302.

It can be written as a sum of positive squares in only one way, i.e., 16213947556 + 4099072576 = 127334^2 + 64024^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20313020132.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2539127513 + ... + 2539127520.

It is an arithmetic number, because the mean of its divisors is an integer number (5924630873).

Almost surely, 2^20313020132 is an apocalyptic number.

It is an amenable number.

20313020132 is a deficient number, since it is larger than the sum of its proper divisors (15234765106).

20313020132 is a wasteful number, since it uses less digits than its factorization.

20313020132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078255037 (or 5078255035 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20313020132 its reverse (23102031302), we get a palindrome (43415051434).

The spelling of 20313020132 in words is "twenty billion, three hundred thirteen million, twenty thousand, one hundred thirty-two".