13031211011232 has 96 divisors (see below), whose sum is σ = 34633294597440. Its totient is φ = 4289638369280.

The previous prime is 13031211011197. The next prime is 13031211011233. The reversal of 13031211011232 is 23211011213031.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 13031211011199 and 13031211011208.

It is not an unprimeable number, because it can be changed into a prime (13031211011233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19114894 + ... + 19784882.

It is an arithmetic number, because the mean of its divisors is an integer number (360763485390).

Almost surely, 2^{13031211011232} is an apocalyptic number.

13031211011232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13031211011232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17316647298720).

13031211011232 is an abundant number, since it is smaller than the sum of its proper divisors (21602083586208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13031211011232 is a wasteful number, since it uses less digits than its factorization.

13031211011232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672526 (or 672518 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 13031211011232 its reverse (23211011213031), we get a palindrome (36242222224263).

The spelling of 13031211011232 in words is "thirteen trillion, thirty-one billion, two hundred eleven million, eleven thousand, two hundred thirty-two".