331030042240121 has 4 divisors (see below), whose sum is σ = 378320048274432. Its totient is φ = 283740036205812.

The previous prime is 331030042240081. The next prime is 331030042240141. The reversal of 331030042240121 is 121042240030133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 331030042240121 - 2²⁶ = 331029975131257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331030042240141) 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, 23645003017145 + ... + 23645003017158.

It is an arithmetic number, because the mean of its divisors is an integer number (94580012068608).

Almost surely, 2^{331030042240121} is an apocalyptic number.

It is an amenable number.

331030042240121 is a deficient number, since it is larger than the sum of its proper divisors (47290006034311).

331030042240121 is an equidigital number, since it uses as much as digits as its factorization.

331030042240121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47290006034310.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 331030042240121 its reverse (121042240030133), we get a palindrome (452072282270254).

The spelling of 331030042240121 in words is "three hundred thirty-one trillion, thirty billion, forty-two million, two hundred forty thousand, one hundred twenty-one".