13011133442 has 32 divisors (see below), whose sum is σ = 21061223424. Its totient is φ = 6010804800.

The previous prime is 13011133441. The next prime is 13011133451. The reversal of 13011133442 is 24433111031.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (13011133441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786092 + ... + 802472.

It is an arithmetic number, because the mean of its divisors is an integer number (658163232).

Almost surely, 2^13011133442 is an apocalyptic number.

13011133442 is a deficient number, since it is larger than the sum of its proper divisors (8050089982).

13011133442 is a wasteful number, since it uses less digits than its factorization.

13011133442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16994.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13011133442 its reverse (24433111031), we get a palindrome (37444244473).

The spelling of 13011133442 in words is "thirteen billion, eleven million, one hundred thirty-three thousand, four hundred forty-two".