201009291907 has 2 divisors, whose sum is σ = 201009291908. Its totient is φ = 201009291906.

The previous prime is 201009291887. The next prime is 201009291947. The reversal of 201009291907 is 709192900102.

It is a happy number.

It is an a-pointer prime, because the next prime (201009291947) can be obtained adding 201009291907 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201009291907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201009291907.

It is not a weakly prime, because it can be changed into another prime (201009291947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100504645953 + 100504645954.

It is an arithmetic number, because the mean of its divisors is an integer number (100504645954).

Almost surely, 2^201009291907 is an apocalyptic number.

201009291907 is a deficient number, since it is larger than the sum of its proper divisors (1).

201009291907 is an equidigital number, since it uses as much as digits as its factorization.

201009291907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 40.

The spelling of 201009291907 in words is "two hundred one billion, nine million, two hundred ninety-one thousand, nine hundred seven".