13402121023 has 2 divisors, whose sum is σ = 13402121024. Its totient is φ = 13402121022.

The previous prime is 13402121009. The next prime is 13402121039. The reversal of 13402121023 is 32012120431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13402121023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13402121053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6701060511 + 6701060512.

It is an arithmetic number, because the mean of its divisors is an integer number (6701060512).

Almost surely, 2^13402121023 is an apocalyptic number.

13402121023 is a deficient number, since it is larger than the sum of its proper divisors (1).

13402121023 is an equidigital number, since it uses as much as digits as its factorization.

13402121023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13402121023 its reverse (32012120431), we get a palindrome (45414241454).

The spelling of 13402121023 in words is "thirteen billion, four hundred two million, one hundred twenty-one thousand, twenty-three".