1320021432307 has 2 divisors, whose sum is σ = 1320021432308. Its totient is φ = 1320021432306.

The previous prime is 1320021432239. The next prime is 1320021432329. The reversal of 1320021432307 is 7032341200231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320021432307 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320021432397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660010716153 + 660010716154.

It is an arithmetic number, because the mean of its divisors is an integer number (660010716154).

Almost surely, 2^{1320021432307} is an apocalyptic number.

1320021432307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320021432307 is an equidigital number, since it uses as much as digits as its factorization.

1320021432307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 1320021432307 its reverse (7032341200231), we get a palindrome (8352362632538).

The spelling of 1320021432307 in words is "one trillion, three hundred twenty billion, twenty-one million, four hundred thirty-two thousand, three hundred seven".