3240121393 has 2 divisors, whose sum is σ = 3240121394. Its totient is φ = 3240121392.

The previous prime is 3240121321. The next prime is 3240121427. The reversal of 3240121393 is 3931210423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3129619249 + 110502144 = 55943^2 + 10512^2 .

It is a cyclic number.

It is not a de Polignac number, because 3240121393 - 2⁹ = 3240120881 is a prime.

It is not a weakly prime, because it can be changed into another prime (3240121693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620060696 + 1620060697.

It is an arithmetic number, because the mean of its divisors is an integer number (1620060697).

Almost surely, 2^3240121393 is an apocalyptic number.

It is an amenable number.

3240121393 is a deficient number, since it is larger than the sum of its proper divisors (1).

3240121393 is an equidigital number, since it uses as much as digits as its factorization.

3240121393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 3240121393 is about 56922.0642018541. The cubic root of 3240121393 is about 1479.7457246689.

The spelling of 3240121393 in words is "three billion, two hundred forty million, one hundred twenty-one thousand, three hundred ninety-three".