350442111312121 has 4 divisors (see below), whose sum is σ = 356187063956644. Its totient is φ = 344697158667600.

The previous prime is 350442111312119. The next prime is 350442111312127. The reversal of 350442111312121 is 121213111244053.

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 112007593556496 + 238434517755625 = 10583364^2 + 15441325^2 .

It is a cyclic number.

It is not a de Polignac number, because 350442111312121 - 2¹ = 350442111312119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350442111312127) 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, 2872476322170 + ... + 2872476322291.

It is an arithmetic number, because the mean of its divisors is an integer number (89046765989161).

Almost surely, 2^{350442111312121} is an apocalyptic number.

It is an amenable number.

350442111312121 is a deficient number, since it is larger than the sum of its proper divisors (5744952644523).

350442111312121 is an equidigital number, since it uses as much as digits as its factorization.

350442111312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5744952644522.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 350442111312121 its reverse (121213111244053), we get a palindrome (471655222556174).

The spelling of 350442111312121 in words is "three hundred fifty trillion, four hundred forty-two billion, one hundred eleven million, three hundred twelve thousand, one hundred twenty-one".