23013030040 has 256 divisors, whose sum is σ = 71922816000. Its totient is φ = 6392494080.

The previous prime is 23013029987. The next prime is 23013030077. The reversal of 23013030040 is 4003031032.

It is a junction number, because it is equal to n+sod(n) for n = 23013029996 and 23013030023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1151251 + ... + 1171069.

It is an arithmetic number, because the mean of its divisors is an integer number (280948500).

Almost surely, 2^23013030040 is an apocalyptic number.

23013030040 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 23013030040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35961408000).

23013030040 is an abundant number, since it is smaller than the sum of its proper divisors (48909785960).

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

23013030040 is a wasteful number, since it uses less digits than its factorization.

23013030040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19890 (or 19886 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 23013030040 its reverse (4003031032), we get a palindrome (27016061072).

The spelling of 23013030040 in words is "twenty-three billion, thirteen million, thirty thousand, forty".