11156314451 has 2 divisors, whose sum is σ = 11156314452. Its totient is φ = 11156314450.

The previous prime is 11156314423. The next prime is 11156314453. The reversal of 11156314451 is 15441365111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11156314451 is a prime.

Together with 11156314453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11156314453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5578157225 + 5578157226.

It is an arithmetic number, because the mean of its divisors is an integer number (5578157226).

Almost surely, 2^11156314451 is an apocalyptic number.

11156314451 is a deficient number, since it is larger than the sum of its proper divisors (1).

11156314451 is an equidigital number, since it uses as much as digits as its factorization.

11156314451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 32.

Adding to 11156314451 its reverse (15441365111), we get a palindrome (26597679562).

The spelling of 11156314451 in words is "eleven billion, one hundred fifty-six million, three hundred fourteen thousand, four hundred fifty-one".