354342771121 has 4 divisors (see below), whose sum is σ = 354458534644. Its totient is φ = 354227007600.

The previous prime is 354342771119. The next prime is 354342771149. The reversal of 354342771121 is 121177243453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121177243453 = 7 ⋅17311034779.

It can be written as a sum of positive squares in 2 ways, for example, as 257723752225 + 96619018896 = 507665^2 + 310836^2 .

It is a cyclic number.

It is not a de Polignac number, because 354342771121 - 2¹ = 354342771119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354342771151) 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, 57877170 + ... + 57883291.

It is an arithmetic number, because the mean of its divisors is an integer number (88614633661).

Almost surely, 2^354342771121 is an apocalyptic number.

It is an amenable number.

354342771121 is a deficient number, since it is larger than the sum of its proper divisors (115763523).

354342771121 is a wasteful number, since it uses less digits than its factorization.

354342771121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115763522.

The product of its digits is 141120, while the sum is 40.

The spelling of 354342771121 in words is "three hundred fifty-four billion, three hundred forty-two million, seven hundred seventy-one thousand, one hundred twenty-one".