20631003340 has 48 divisors (see below), whose sum is σ = 43785624960. Its totient is φ = 8164903680.

The previous prime is 20631003313. The next prime is 20631003353. The reversal of 20631003340 is 4330013602.

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, 1591485 + ... + 1604395.

It is an arithmetic number, because the mean of its divisors is an integer number (912200520).

Almost surely, 2^20631003340 is an apocalyptic number.

20631003340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20631003340 is an abundant number, since it is smaller than the sum of its proper divisors (23154621620).

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

20631003340 is a wasteful number, since it uses less digits than its factorization.

20631003340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13762 (or 13760 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20631003340 its reverse (4330013602), we get a palindrome (24961016942).

The spelling of 20631003340 in words is "twenty billion, six hundred thirty-one million, three thousand, three hundred forty".