201911151313 has 2 divisors, whose sum is σ = 201911151314. Its totient is φ = 201911151312.

The previous prime is 201911151311. The next prime is 201911151347. The reversal of 201911151313 is 313151119102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122057999424 + 79853151889 = 349368^2 + 282583^2 .

It is a cyclic number.

It is not a de Polignac number, because 201911151313 - 2¹ = 201911151311 is a prime.

It is a super-2 number, since 2×201911151313² (a number of 23 digits) contains 22 as substring.

Together with 201911151311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (201911151311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100955575656 + 100955575657.

It is an arithmetic number, because the mean of its divisors is an integer number (100955575657).

Almost surely, 2^201911151313 is an apocalyptic number.

It is an amenable number.

201911151313 is a deficient number, since it is larger than the sum of its proper divisors (1).

201911151313 is an equidigital number, since it uses as much as digits as its factorization.

201911151313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 28.

The spelling of 201911151313 in words is "two hundred one billion, nine hundred eleven million, one hundred fifty-one thousand, three hundred thirteen".