1320421124667 has 16 divisors (see below), whose sum is σ = 1783608398208. Its totient is φ = 868779149760.

The previous prime is 1320421124657. The next prime is 1320421124677. The reversal of 1320421124667 is 7664211240231.

It is an interprime number because it is at equal distance from previous prime (1320421124657) and next prime (1320421124677).

It is not a de Polignac number, because 1320421124667 - 2⁸ = 1320421124411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320421124657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2488858 + ... + 2972415.

It is an arithmetic number, because the mean of its divisors is an integer number (111475524888).

Almost surely, 2^{1320421124667} is an apocalyptic number.

1320421124667 is a deficient number, since it is larger than the sum of its proper divisors (463187273541).

1320421124667 is an equidigital number, since it uses as much as digits as its factorization.

1320421124667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5462330.

The product of its (nonzero) digits is 96768, while the sum is 39.

Adding to 1320421124667 its reverse (7664211240231), we get a palindrome (8984632364898).

The spelling of 1320421124667 in words is "one trillion, three hundred twenty billion, four hundred twenty-one million, one hundred twenty-four thousand, six hundred sixty-seven".