3122403121 has 2 divisors, whose sum is σ = 3122403122. Its totient is φ = 3122403120.

The previous prime is 3122403113. The next prime is 3122403143. The reversal of 3122403121 is 1213042213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1962047025 + 1160356096 = 44295^2 + 34064^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122403121 - 2³ = 3122403113 is a prime.

It is not a weakly prime, because it can be changed into another prime (3122403191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561201560 + 1561201561.

It is an arithmetic number, because the mean of its divisors is an integer number (1561201561).

Almost surely, 2^3122403121 is an apocalyptic number.

It is an amenable number.

3122403121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3122403121 is an equidigital number, since it uses as much as digits as its factorization.

3122403121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3122403121 is about 55878.4674181388. The cubic root of 3122403121 is about 1461.6037797953.

Adding to 3122403121 its reverse (1213042213), we get a palindrome (4335445334).

The spelling of 3122403121 in words is "three billion, one hundred twenty-two million, four hundred three thousand, one hundred twenty-one".