13454120123 has 2 divisors, whose sum is σ = 13454120124. Its totient is φ = 13454120122.

The previous prime is 13454120107. The next prime is 13454120137. The reversal of 13454120123 is 32102145431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13454120123 - 2⁴ = 13454120107 is a prime.

It is a super-2 number, since 2×13454120123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13454120092 and 13454120101.

It is not a weakly prime, because it can be changed into another prime (13454120923) 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, 6727060061 + 6727060062.

It is an arithmetic number, because the mean of its divisors is an integer number (6727060062).

Almost surely, 2^13454120123 is an apocalyptic number.

13454120123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13454120123 is an equidigital number, since it uses as much as digits as its factorization.

13454120123 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 13454120123 its reverse (32102145431), we get a palindrome (45556265554).

The spelling of 13454120123 in words is "thirteen billion, four hundred fifty-four million, one hundred twenty thousand, one hundred twenty-three".