3231520007 has 2 divisors, whose sum is σ = 3231520008. Its totient is φ = 3231520006.

The previous prime is 3231520003. The next prime is 3231520013. The reversal of 3231520007 is 7000251323.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3231520007 - 2² = 3231520003 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3231520003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615760003 + 1615760004.

It is an arithmetic number, because the mean of its divisors is an integer number (1615760004).

Almost surely, 2^3231520007 is an apocalyptic number.

3231520007 is a deficient number, since it is larger than the sum of its proper divisors (1).

3231520007 is an equidigital number, since it uses as much as digits as its factorization.

3231520007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 3231520007 is about 56846.4599337549. The cubic root of 3231520007 is about 1478.4351623034.

The spelling of 3231520007 in words is "three billion, two hundred thirty-one million, five hundred twenty thousand, seven".