20031340132 has 24 divisors (see below), whose sum is σ = 35133108920. Its totient is φ = 9993335040.

The previous prime is 20031340123. The next prime is 20031340187. The reversal of 20031340132 is 23104313002.

It can be written as a sum of positive squares in 4 ways, for example, as 659154276 + 19372185856 = 25674^2 + 139184^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4935448 + ... + 4939504.

Almost surely, 2^20031340132 is an apocalyptic number.

It is an amenable number.

20031340132 is a deficient number, since it is larger than the sum of its proper divisors (15101768788).

20031340132 is a wasteful number, since it uses less digits than its factorization.

20031340132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6511 (or 6509 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20031340132 its reverse (23104313002), we get a palindrome (43135653134).

The spelling of 20031340132 in words is "twenty billion, thirty-one million, three hundred forty thousand, one hundred thirty-two".