13451220011 has 2 divisors, whose sum is σ = 13451220012. Its totient is φ = 13451220010.

The previous prime is 13451219989. The next prime is 13451220047. The reversal of 13451220011 is 11002215431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13451220011 is a prime.

It is not a weakly prime, because it can be changed into another prime (13451220091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6725610005 + 6725610006.

It is an arithmetic number, because the mean of its divisors is an integer number (6725610006).

Almost surely, 2^13451220011 is an apocalyptic number.

13451220011 is a deficient number, since it is larger than the sum of its proper divisors (1).

13451220011 is an equidigital number, since it uses as much as digits as its factorization.

13451220011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 13451220011 its reverse (11002215431), we get a palindrome (24453435442).

The spelling of 13451220011 in words is "thirteen billion, four hundred fifty-one million, two hundred twenty thousand, eleven".