13111154146 has 4 divisors (see below), whose sum is σ = 19666731222. Its totient is φ = 6555577072.

The previous prime is 13111154131. The next prime is 13111154159. The reversal of 13111154146 is 64145111131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7964670025 + 5146484121 = 89245^2 + 71739^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277788535 + ... + 3277788538.

Almost surely, 2^13111154146 is an apocalyptic number.

13111154146 is a deficient number, since it is larger than the sum of its proper divisors (6555577076).

13111154146 is an equidigital number, since it uses as much as digits as its factorization.

13111154146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6555577075.

The product of its digits is 1440, while the sum is 28.

Adding to 13111154146 its reverse (64145111131), we get a palindrome (77256265277).

The spelling of 13111154146 in words is "thirteen billion, one hundred eleven million, one hundred fifty-four thousand, one hundred forty-six".