351201121 has 4 divisors (see below), whose sum is σ = 359767044. Its totient is φ = 342635200.

The previous prime is 351201119. The next prime is 351201131. The reversal of 351201121 is 121102153.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121102153 = 23 ⋅5265311.

It can be written as a sum of positive squares in 2 ways, for example, as 4682896 + 346518225 = 2164^2 + 18615^2 .

It is a cyclic number.

It is not a de Polignac number, because 351201121 - 2¹ = 351201119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 351201095 and 351201104.

It is not an unprimeable number, because it can be changed into a prime (351201131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4282900 + ... + 4282981.

It is an arithmetic number, because the mean of its divisors is an integer number (89941761).

Almost surely, 2^351201121 is an apocalyptic number.

It is an amenable number.

351201121 is a deficient number, since it is larger than the sum of its proper divisors (8565923).

351201121 is an equidigital number, since it uses as much as digits as its factorization.

351201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8565922.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 351201121 is about 18740.3607489290. The cubic root of 351201121 is about 705.5351107290.

Adding to 351201121 its reverse (121102153), we get a palindrome (472303274).

The spelling of 351201121 in words is "three hundred fifty-one million, two hundred one thousand, one hundred twenty-one".