90839111201 has 2 divisors, whose sum is σ = 90839111202. Its totient is φ = 90839111200.

The previous prime is 90839111197. The next prime is 90839111203. The reversal of 90839111201 is 10211193809.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85535776225 + 5303334976 = 292465^2 + 72824^2 .

It is an emirp because it is prime and its reverse (10211193809) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90839111201 - 2² = 90839111197 is a prime.

Together with 90839111203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90839111203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45419555600 + 45419555601.

It is an arithmetic number, because the mean of its divisors is an integer number (45419555601).

Almost surely, 2^90839111201 is an apocalyptic number.

It is an amenable number.

90839111201 is a deficient number, since it is larger than the sum of its proper divisors (1).

90839111201 is an equidigital number, since it uses as much as digits as its factorization.

90839111201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 35.

The spelling of 90839111201 in words is "ninety billion, eight hundred thirty-nine million, one hundred eleven thousand, two hundred one".