11423212042 has 16 divisors (see below), whose sum is σ = 19127240352. Its totient is φ = 5071615920.

The previous prime is 11423212019. The next prime is 11423212043. The reversal of 11423212042 is 24021232411.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (11423212043) 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, 6036693 + ... + 6038584.

It is an arithmetic number, because the mean of its divisors is an integer number (1195452522).

Almost surely, 2^11423212042 is an apocalyptic number.

11423212042 is a deficient number, since it is larger than the sum of its proper divisors (7704028310).

11423212042 is a wasteful number, since it uses less digits than its factorization.

11423212042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12075333.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11423212042 its reverse (24021232411), we get a palindrome (35444444453).

The spelling of 11423212042 in words is "eleven billion, four hundred twenty-three million, two hundred twelve thousand, forty-two".