331224042101 has 4 divisors (see below), whose sum is σ = 331387289100. Its totient is φ = 331060795104.

The previous prime is 331224042059. The next prime is 331224042103. The reversal of 331224042101 is 101240422133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101240422133 = 17 ⋅5955318949.

It can be written as a sum of positive squares in 2 ways, for example, as 213235227076 + 117988815025 = 461774^2 + 343495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331224042101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331224042103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81620456 + ... + 81624513.

It is an arithmetic number, because the mean of its divisors is an integer number (82846822275).

Almost surely, 2^331224042101 is an apocalyptic number.

It is an amenable number.

331224042101 is a deficient number, since it is larger than the sum of its proper divisors (163246999).

331224042101 is a wasteful number, since it uses less digits than its factorization.

331224042101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163246998.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 331224042101 its reverse (101240422133), we get a palindrome (432464464234).

The spelling of 331224042101 in words is "three hundred thirty-one billion, two hundred twenty-four million, forty-two thousand, one hundred one".