331345621007 has 2 divisors, whose sum is σ = 331345621008. Its totient is φ = 331345621006.

The previous prime is 331345620997. The next prime is 331345621021. The reversal of 331345621007 is 700126543133.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331345621007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331345621037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165672810503 + 165672810504.

It is an arithmetic number, because the mean of its divisors is an integer number (165672810504).

Almost surely, 2^331345621007 is an apocalyptic number.

331345621007 is a deficient number, since it is larger than the sum of its proper divisors (1).

331345621007 is an equidigital number, since it uses as much as digits as its factorization.

331345621007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 35.

The spelling of 331345621007 in words is "three hundred thirty-one billion, three hundred forty-five million, six hundred twenty-one thousand, seven".