326401747031 has 2 divisors, whose sum is σ = 326401747032. Its totient is φ = 326401747030.

The previous prime is 326401746961. The next prime is 326401747033. The reversal of 326401747031 is 130747104623.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 326401747031 - 2³⁴ = 309221877847 is a prime.

It is a super-2 number, since 2×326401747031² (a number of 24 digits) contains 22 as substring.

Together with 326401747033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326401747033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163200873515 + 163200873516.

It is an arithmetic number, because the mean of its divisors is an integer number (163200873516).

Almost surely, 2^326401747031 is an apocalyptic number.

326401747031 is a deficient number, since it is larger than the sum of its proper divisors (1).

326401747031 is an equidigital number, since it uses as much as digits as its factorization.

326401747031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 326401747031 in words is "three hundred twenty-six billion, four hundred one million, seven hundred forty-seven thousand, thirty-one".