20083051081 has 4 divisors (see below), whose sum is σ = 20083405972. Its totient is φ = 20082696192.

The previous prime is 20083051063. The next prime is 20083051127. The reversal of 20083051081 is 18015038002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19695315600 + 387735481 = 140340^2 + 19691^2 .

It is a cyclic number.

It is not a de Polignac number, because 20083051081 - 2⁵ = 20083051049 is a prime.

It is a super-2 number, since 2×20083051081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20083051061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71460 + ... + 212773.

It is an arithmetic number, because the mean of its divisors is an integer number (5020851493).

Almost surely, 2^20083051081 is an apocalyptic number.

It is an amenable number.

20083051081 is a deficient number, since it is larger than the sum of its proper divisors (354891).

20083051081 is an equidigital number, since it uses as much as digits as its factorization.

20083051081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354890.

The product of its (nonzero) digits is 1920, while the sum is 28.

Adding to 20083051081 its reverse (18015038002), we get a palindrome (38098089083).

The spelling of 20083051081 in words is "twenty billion, eighty-three million, fifty-one thousand, eighty-one".