201031020259 has 2 divisors, whose sum is σ = 201031020260. Its totient is φ = 201031020258.

The previous prime is 201031020199. The next prime is 201031020269. The reversal of 201031020259 is 952020130102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201031020259 - 2¹⁷ = 201030889187 is a prime.

It is a super-2 number, since 2×201031020259² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201031020269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100515510129 + 100515510130.

It is an arithmetic number, because the mean of its divisors is an integer number (100515510130).

Almost surely, 2^201031020259 is an apocalyptic number.

201031020259 is a deficient number, since it is larger than the sum of its proper divisors (1).

201031020259 is an equidigital number, since it uses as much as digits as its factorization.

201031020259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 201031020259 in words is "two hundred one billion, thirty-one million, twenty thousand, two hundred fifty-nine".