23011212142 has 16 divisors (see below), whose sum is σ = 35490739680. Its totient is φ = 11184949152.

The previous prime is 23011212137. The next prime is 23011212149. The reversal of 23011212142 is 24121211032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011212149) 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, 984258 + ... + 1007365.

It is an arithmetic number, because the mean of its divisors is an integer number (2218171230).

Almost surely, 2^23011212142 is an apocalyptic number.

23011212142 is a deficient number, since it is larger than the sum of its proper divisors (12479527538).

23011212142 is a wasteful number, since it uses less digits than its factorization.

23011212142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991787.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 23011212142 its reverse (24121211032), we get a palindrome (47132423174).

The spelling of 23011212142 in words is "twenty-three billion, eleven million, two hundred twelve thousand, one hundred forty-two".