23123155040 has 192 divisors, whose sum is σ = 58786560000. Its totient is φ = 8569128960.

The previous prime is 23123155019. The next prime is 23123155051. The reversal of 23123155040 is 4055132132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32159801 + ... + 32160519.

It is an arithmetic number, because the mean of its divisors is an integer number (306180000).

Almost surely, 2^23123155040 is an apocalyptic number.

23123155040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23123155040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29393280000).

23123155040 is an abundant number, since it is smaller than the sum of its proper divisors (35663404960).

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

23123155040 is a wasteful number, since it uses less digits than its factorization.

23123155040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 23123155040 its reverse (4055132132), we get a palindrome (27178287172).

The spelling of 23123155040 in words is "twenty-three billion, one hundred twenty-three million, one hundred fifty-five thousand, forty".