23202012042 has 96 divisors (see below), whose sum is σ = 55801789056. Its totient is φ = 6908428800.

The previous prime is 23202011981. The next prime is 23202012061. The reversal of 23202012042 is 24021020232.

It is a super-2 number, since 2×23202012042² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 4397518 + ... + 4402790.

It is an arithmetic number, because the mean of its divisors is an integer number (581268636).

Almost surely, 2^23202012042 is an apocalyptic number.

23202012042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 23202012042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27900894528).

23202012042 is an abundant number, since it is smaller than the sum of its proper divisors (32599777014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23202012042 is a wasteful number, since it uses less digits than its factorization.

23202012042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676 (or 5673 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 23202012042 its reverse (24021020232), we get a palindrome (47223032274).

The spelling of 23202012042 in words is "twenty-three billion, two hundred two million, twelve thousand, forty-two".