23421212342 has 16 divisors (see below), whose sum is σ = 38428383312. Its totient is φ = 10617460320.

The previous prime is 23421212329. The next prime is 23421212357. The reversal of 23421212342 is 24321212432.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1418873 + ... + 1435284.

It is an arithmetic number, because the mean of its divisors is an integer number (2401773957).

Almost surely, 2^23421212342 is an apocalyptic number.

23421212342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23421212342 is a deficient number, since it is larger than the sum of its proper divisors (15007170970).

23421212342 is a wasteful number, since it uses less digits than its factorization.

23421212342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854543.

The product of its digits is 4608, while the sum is 26.

Adding to 23421212342 its reverse (24321212432), we get a palindrome (47742424774).

The spelling of 23421212342 in words is "twenty-three billion, four hundred twenty-one million, two hundred twelve thousand, three hundred forty-two".