13011011231 has 8 divisors (see below), whose sum is σ = 13100487840. Its totient is φ = 12921618528.

The previous prime is 13011011219. The next prime is 13011011291. The reversal of 13011011231 is 13211011031.

It is a happy number.

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 13011011231 - 2¹⁴ = 13010994847 is a prime.

It is a super-2 number, since 2×13011011231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011011291) 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, 307805 + ... + 347513.

It is an arithmetic number, because the mean of its divisors is an integer number (1637560980).

Almost surely, 2^13011011231 is an apocalyptic number.

13011011231 is a deficient number, since it is larger than the sum of its proper divisors (89476609).

13011011231 is a wasteful number, since it uses less digits than its factorization.

13011011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41953.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 13011011231 its reverse (13211011031), we get a palindrome (26222022262).

The spelling of 13011011231 in words is "thirteen billion, eleven million, eleven thousand, two hundred thirty-one".