13223112031242 has 96 divisors (see below), whose sum is σ = 29847133068480. Its totient is φ = 4387544703360.

The previous prime is 13223112031147. The next prime is 13223112031249. The reversal of 13223112031242 is 24213021132231.

13223112031242 is a `hidden beast` number, since 1 + 3 + 22 + 311 + 203 + 124 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13223112031249) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 729300517 + ... + 729318647.

It is an arithmetic number, because the mean of its divisors is an integer number (310907636130).

Almost surely, 2^{13223112031242} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13223112031242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14923566534240).

13223112031242 is an abundant number, since it is smaller than the sum of its proper divisors (16624021037238).

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

13223112031242 is a wasteful number, since it uses less digits than its factorization.

13223112031242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24930 (or 24918 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 13223112031242 its reverse (24213021132231), we get a palindrome (37436133163473).

The spelling of 13223112031242 in words is "thirteen trillion, two hundred twenty-three billion, one hundred twelve million, thirty-one thousand, two hundred forty-two".