13123030311 has 12 divisors (see below), whose sum is σ = 18997711200. Its totient is φ = 8729199360.

The previous prime is 13123030309. The next prime is 13123030339. The reversal of 13123030311 is 11303032131.

It is a happy number.

13123030311 is a `hidden beast` number, since 131 + 230 + 303 + 1 + 1 = 666.

It is not a de Polignac number, because 13123030311 - 2¹ = 13123030309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123030211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1619695 + ... + 1627776.

It is an arithmetic number, because the mean of its divisors is an integer number (1583142600).

Almost surely, 2^13123030311 is an apocalyptic number.

13123030311 is a deficient number, since it is larger than the sum of its proper divisors (5874680889).

13123030311 is a wasteful number, since it uses less digits than its factorization.

13123030311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3247926 (or 3247923 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13123030311 its reverse (11303032131), we get a palindrome (24426062442).

The spelling of 13123030311 in words is "thirteen billion, one hundred twenty-three million, thirty thousand, three hundred eleven".