200031109 has 2 divisors, whose sum is σ = 200031110. Its totient is φ = 200031108.

The previous prime is 200031089. The next prime is 200031119. The reversal of 200031109 is 901130002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156800484 + 43230625 = 12522^2 + 6575^2 .

It is a cyclic number.

It is not a de Polignac number, because 200031109 - 2²³ = 191642501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200031092 and 200031101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200031119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100015554 + 100015555.

It is an arithmetic number, because the mean of its divisors is an integer number (100015555).

Almost surely, 2^200031109 is an apocalyptic number.

It is an amenable number.

200031109 is a deficient number, since it is larger than the sum of its proper divisors (1).

200031109 is an equidigital number, since it uses as much as digits as its factorization.

200031109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 200031109 is about 14143.2354502073. The cubic root of 200031109 is about 584.8338671599.

It can be divided in two parts, 20003 and 1109, that added together give a palindrome (21112).

The spelling of 200031109 in words is "two hundred million, thirty-one thousand, one hundred nine".