13123152011 has 4 divisors (see below), whose sum is σ = 13123471152. Its totient is φ = 13122832872.

The previous prime is 13123151981. The next prime is 13123152013. The reversal of 13123152011 is 11025132131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13123152011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123152013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86840 + ... + 183813.

It is an arithmetic number, because the mean of its divisors is an integer number (3280867788).

Almost surely, 2^13123152011 is an apocalyptic number.

13123152011 is a deficient number, since it is larger than the sum of its proper divisors (319141).

13123152011 is an equidigital number, since it uses as much as digits as its factorization.

13123152011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319140.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 13123152011 its reverse (11025132131), we get a palindrome (24148284142).

The spelling of 13123152011 in words is "thirteen billion, one hundred twenty-three million, one hundred fifty-two thousand, eleven".