1321302151423 has 2 divisors, whose sum is σ = 1321302151424. Its totient is φ = 1321302151422.

The previous prime is 1321302151399. The next prime is 1321302151459. The reversal of 1321302151423 is 3241512031231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321302151423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1321302151391 and 1321302151400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321302154423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660651075711 + 660651075712.

It is an arithmetic number, because the mean of its divisors is an integer number (660651075712).

Almost surely, 2^{1321302151423} is an apocalyptic number.

1321302151423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321302151423 is an equidigital number, since it uses as much as digits as its factorization.

1321302151423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 1321302151423 its reverse (3241512031231), we get a palindrome (4562814182654).

The spelling of 1321302151423 in words is "one trillion, three hundred twenty-one billion, three hundred two million, one hundred fifty-one thousand, four hundred twenty-three".