23144011020 has 72 divisors (see below), whose sum is σ = 75603776976. Its totient is φ = 5696986752.

The previous prime is 23144011013. The next prime is 23144011057. The reversal of 23144011020 is 2011044132.

23144011020 is a `hidden beast` number, since 231 + 4 + 401 + 10 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 23144010984 and 23144011002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4942962 + ... + 4947641.

It is an arithmetic number, because the mean of its divisors is an integer number (1050052458).

Almost surely, 2^23144011020 is an apocalyptic number.

23144011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23144011020 is an abundant number, since it is smaller than the sum of its proper divisors (52459765956).

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

23144011020 is a wasteful number, since it uses less digits than its factorization.

23144011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9890631 (or 9890626 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 23144011020 its reverse (2011044132), we get a palindrome (25155055152).

The spelling of 23144011020 in words is "twenty-three billion, one hundred forty-four million, eleven thousand, twenty".