3132121309 has 2 divisors, whose sum is σ = 3132121310. Its totient is φ = 3132121308.

The previous prime is 3132121277. The next prime is 3132121379. The reversal of 3132121309 is 9031212313.

3132121309 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., 2148044409 + 984076900 = 46347^2 + 31370^2 .

It is a cyclic number.

It is not a de Polignac number, because 3132121309 - 2⁵ = 3132121277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3132121379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1566060654 + 1566060655.

It is an arithmetic number, because the mean of its divisors is an integer number (1566060655).

Almost surely, 2^3132121309 is an apocalyptic number.

It is an amenable number.

3132121309 is a deficient number, since it is larger than the sum of its proper divisors (1).

3132121309 is an equidigital number, since it uses as much as digits as its factorization.

3132121309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 3132121309 is about 55965.3581155343. The cubic root of 3132121309 is about 1463.1185777290.

The spelling of 3132121309 in words is "three billion, one hundred thirty-two million, one hundred twenty-one thousand, three hundred nine".