20083831 has 2 divisors, whose sum is σ = 20083832. Its totient is φ = 20083830.

The previous prime is 20083813. The next prime is 20083837. The reversal of 20083831 is 13838002.

Together with previous prime (20083813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20083831 - 2¹⁵ = 20051063 is a prime.

It is a super-2 number, since 2×20083831² = 806720535273122, which contains 22 as substring.

It is equal to p_1275622 and since 20083831 and 1275622 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 20083796 and 20083805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20083837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10041915 + 10041916.

It is an arithmetic number, because the mean of its divisors is an integer number (10041916).

Almost surely, 2^20083831 is an apocalyptic number.

20083831 is a deficient number, since it is larger than the sum of its proper divisors (1).

20083831 is an equidigital number, since it uses as much as digits as its factorization.

20083831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20083831 is about 4481.4987448397. The cubic root of 20083831 is about 271.8204869081.

The spelling of 20083831 in words is "twenty million, eighty-three thousand, eight hundred thirty-one".