351274351321 has 4 divisors (see below), whose sum is σ = 351283523044. Its totient is φ = 351265179600.

The previous prime is 351274351279. The next prime is 351274351331. The reversal of 351274351321 is 123153472153.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35272971721 + 316001379600 = 187811^2 + 562140^2 .

It is a cyclic number.

It is not a de Polignac number, because 351274351321 - 2²⁷ = 351140133593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351274351331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4528170 + ... + 4605091.

It is an arithmetic number, because the mean of its divisors is an integer number (87820880761).

Almost surely, 2^351274351321 is an apocalyptic number.

It is an amenable number.

351274351321 is a deficient number, since it is larger than the sum of its proper divisors (9171723).

351274351321 is an equidigital number, since it uses as much as digits as its factorization.

351274351321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9171722.

The product of its digits is 75600, while the sum is 37.

The spelling of 351274351321 in words is "three hundred fifty-one billion, two hundred seventy-four million, three hundred fifty-one thousand, three hundred twenty-one".