3121123001 has 2 divisors, whose sum is σ = 3121123002. Its totient is φ = 3121123000.

The previous prime is 3121122959. The next prime is 3121123013. The reversal of 3121123001 is 1003211213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1962401401 + 1158721600 = 44299^2 + 34040^2 .

It is a cyclic number.

It is not a de Polignac number, because 3121123001 - 2¹⁴ = 3121106617 is a prime.

It is not a weakly prime, because it can be changed into another prime (3121123081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560561500 + 1560561501.

It is an arithmetic number, because the mean of its divisors is an integer number (1560561501).

Almost surely, 2^3121123001 is an apocalyptic number.

It is an amenable number.

3121123001 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121123001 is an equidigital number, since it uses as much as digits as its factorization.

3121123001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 3121123001 is about 55867.0117421721. The cubic root of 3121123001 is about 1461.4040101616.

Adding to 3121123001 its reverse (1003211213), we get a palindrome (4124334214).

The spelling of 3121123001 in words is "three billion, one hundred twenty-one million, one hundred twenty-three thousand, one".