23213233442 has 72 divisors (see below), whose sum is σ = 42477166080. Its totient is φ = 9475174800.

The previous prime is 23213233357. The next prime is 23213233447. The reversal of 23213233442 is 24433231232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213233447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 74640467 + ... + 74640777.

It is an arithmetic number, because the mean of its divisors is an integer number (589960640).

Almost surely, 2^23213233442 is an apocalyptic number.

23213233442 is a deficient number, since it is larger than the sum of its proper divisors (19263932638).

23213233442 is an equidigital number, since it uses as much as digits as its factorization.

23213233442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 430 counting only the distinct ones).

The product of its digits is 20736, while the sum is 29.

Adding to 23213233442 its reverse (24433231232), we get a palindrome (47646464674).

The spelling of 23213233442 in words is "twenty-three billion, two hundred thirteen million, two hundred thirty-three thousand, four hundred forty-two".