313020210091 has 2 divisors, whose sum is σ = 313020210092. Its totient is φ = 313020210090.

The previous prime is 313020210089. The next prime is 313020210109. The reversal of 313020210091 is 190012020313.

Together with next prime (313020210109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313020210091 - 2¹ = 313020210089 is a prime.

It is a super-3 number, since 3×313020210091³ (a number of 35 digits) contains 333 as substring.

Together with 313020210089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (313020210491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156510105045 + 156510105046.

It is an arithmetic number, because the mean of its divisors is an integer number (156510105046).

Almost surely, 2^313020210091 is an apocalyptic number.

313020210091 is a deficient number, since it is larger than the sum of its proper divisors (1).

313020210091 is an equidigital number, since it uses as much as digits as its factorization.

313020210091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 313020210091 in words is "three hundred thirteen billion, twenty million, two hundred ten thousand, ninety-one".