3123215101 has 2 divisors, whose sum is σ = 3123215102. Its totient is φ = 3123215100.

The previous prime is 3123215089. The next prime is 3123215113. The reversal of 3123215101 is 1015123213.

It is a balanced prime because it is at equal distance from previous prime (3123215089) and next prime (3123215113).

It can be written as a sum of positive squares in only one way, i.e., 3119334201 + 3880900 = 55851^2 + 1970^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123215101 - 2¹¹ = 3123213053 is a prime.

It is a super-2 number, since 2×3123215101² = 19508945134228880402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123215171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561607550 + 1561607551.

It is an arithmetic number, because the mean of its divisors is an integer number (1561607551).

Almost surely, 2^3123215101 is an apocalyptic number.

It is an amenable number.

3123215101 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123215101 is an equidigital number, since it uses as much as digits as its factorization.

3123215101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 3123215101 is about 55885.7325352366. The cubic root of 3123215101 is about 1461.7304653567.

Adding to 3123215101 its reverse (1015123213), we get a palindrome (4138338314).

The spelling of 3123215101 in words is "three billion, one hundred twenty-three million, two hundred fifteen thousand, one hundred one".