350240015556121 has 4 divisors (see below), whose sum is σ = 350250967091044. Its totient is φ = 350229064021200.

The previous prime is 350240015556103. The next prime is 350240015556229. The reversal of 350240015556121 is 121655510042053.

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 158743267640896 + 191496747915225 = 12599336^2 + 13838235^2 .

It is a cyclic number.

It is not a de Polignac number, because 350240015556121 - 2⁹ = 350240015555609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350240015550121) 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, 5475719490 + ... + 5475783451.

It is an arithmetic number, because the mean of its divisors is an integer number (87562741772761).

Almost surely, 2^{350240015556121} is an apocalyptic number.

It is an amenable number.

350240015556121 is a deficient number, since it is larger than the sum of its proper divisors (10951534923).

350240015556121 is a wasteful number, since it uses less digits than its factorization.

350240015556121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10951534922.

The product of its (nonzero) digits is 180000, while the sum is 40.

Adding to 350240015556121 its reverse (121655510042053), we get a palindrome (471895525598174).

The spelling of 350240015556121 in words is "three hundred fifty trillion, two hundred forty billion, fifteen million, five hundred fifty-six thousand, one hundred twenty-one".