13123120021051 has 2 divisors, whose sum is σ = 13123120021052. Its totient is φ = 13123120021050.

The previous prime is 13123120020919. The next prime is 13123120021079. The reversal of 13123120021051 is 15012002132131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13123120021051 - 2¹⁵ = 13123119988283 is a prime.

It is not a weakly prime, because it can be changed into another prime (13123120021751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561560010525 + 6561560010526.

It is an arithmetic number, because the mean of its divisors is an integer number (6561560010526).

Almost surely, 2^{13123120021051} is an apocalyptic number.

13123120021051 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123120021051 is an equidigital number, since it uses as much as digits as its factorization.

13123120021051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 13123120021051 its reverse (15012002132131), we get a palindrome (28135122153182).

The spelling of 13123120021051 in words is "thirteen trillion, one hundred twenty-three billion, one hundred twenty million, twenty-one thousand, fifty-one".