20883140100 has 81 divisors (see below), whose sum is σ = 65470634047. Its totient is φ = 5567681280.

The previous prime is 20883140077. The next prime is 20883140123. The reversal of 20883140100 is 104138802.

The square root of 20883140100 is 144510.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (20883140077) and next prime (20883140123).

It can be written as a sum of positive squares in 4 ways, for example, as 7059024324 + 13824115776 = 84018^2 + 117576^2 .

It is a super-2 number, since 2×20883140100² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4332892 + ... + 4337708.

Almost surely, 2^20883140100 is an apocalyptic number.

20883140100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

20883140100 is the 144510-th square number.

It is an amenable number.

20883140100 is an abundant number, since it is smaller than the sum of its proper divisors (44587493947).

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

20883140100 is an equidigital number, since it uses as much as digits as its factorization.

20883140100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9654 (or 4827 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 20883140100 its reverse (104138802), we get a palindrome (20987278902).

The spelling of 20883140100 in words is "twenty billion, eight hundred eighty-three million, one hundred forty thousand, one hundred".