742331332121 has 2 divisors, whose sum is σ = 742331332122. Its totient is φ = 742331332120.

The previous prime is 742331332103. The next prime is 742331332151. The reversal of 742331332121 is 121233133247.

742331332121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 724711690000 + 17619642121 = 851300^2 + 132739^2 .

It is an emirp because it is prime and its reverse (121233133247) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742331332121 is a prime.

It is not a weakly prime, because it can be changed into another prime (742331332151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371165666060 + 371165666061.

It is an arithmetic number, because the mean of its divisors is an integer number (371165666061).

Almost surely, 2^742331332121 is an apocalyptic number.

It is an amenable number.

742331332121 is a deficient number, since it is larger than the sum of its proper divisors (1).

742331332121 is an equidigital number, since it uses as much as digits as its factorization.

742331332121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 32.

Adding to 742331332121 its reverse (121233133247), we get a palindrome (863564465368).

The spelling of 742331332121 in words is "seven hundred forty-two billion, three hundred thirty-one million, three hundred thirty-two thousand, one hundred twenty-one".