13012231011 has 8 divisors (see below), whose sum is σ = 18684229200. Its totient is φ = 8007526752.

The previous prime is 13012231007. The next prime is 13012231061. The reversal of 13012231011 is 11013221031.

It is a happy number.

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

It is not a de Polignac number, because 13012231011 - 2² = 13012231007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13012231061) 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, 166823436 + ... + 166823513.

It is an arithmetic number, because the mean of its divisors is an integer number (2335528650).

Almost surely, 2^13012231011 is an apocalyptic number.

13012231011 is a deficient number, since it is larger than the sum of its proper divisors (5671998189).

13012231011 is a wasteful number, since it uses less digits than its factorization.

13012231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333646965.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13012231011 its reverse (11013221031), we get a palindrome (24025452042).

The spelling of 13012231011 in words is "thirteen billion, twelve million, two hundred thirty-one thousand, eleven".