1320322421051 has 2 divisors, whose sum is σ = 1320322421052. Its totient is φ = 1320322421050.

The previous prime is 1320322420987. The next prime is 1320322421101. The reversal of 1320322421051 is 1501242230231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1320322421051 - 2⁶ = 1320322420987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1320322421051.

It is not a weakly prime, because it can be changed into another prime (1320322424051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660161210525 + 660161210526.

It is an arithmetic number, because the mean of its divisors is an integer number (660161210526).

Almost surely, 2^{1320322421051} is an apocalyptic number.

1320322421051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320322421051 is an equidigital number, since it uses as much as digits as its factorization.

1320322421051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1320322421051 its reverse (1501242230231), we get a palindrome (2821564651282).

The spelling of 1320322421051 in words is "one trillion, three hundred twenty billion, three hundred twenty-two million, four hundred twenty-one thousand, fifty-one".