13011020311 has 8 divisors (see below), whose sum is σ = 13231712000. Its totient is φ = 12791108088.

The previous prime is 13011020303. The next prime is 13011020327. The reversal of 13011020311 is 11302011031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13011020311 - 2³ = 13011020303 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13011020291 and 13011020300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011026311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161151 + ... + 228016.

It is an arithmetic number, because the mean of its divisors is an integer number (1653964000).

Almost surely, 2^13011020311 is an apocalyptic number.

13011020311 is a deficient number, since it is larger than the sum of its proper divisors (220691689).

13011020311 is an equidigital number, since it uses as much as digits as its factorization.

13011020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389733.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13011020311 its reverse (11302011031), we get a palindrome (24313031342).

The spelling of 13011020311 in words is "thirteen billion, eleven million, twenty thousand, three hundred eleven".