23013543420 has 576 divisors, whose sum is σ = 87002173440. Its totient is φ = 4996297728.

The previous prime is 23013543409. The next prime is 23013543431. The reversal of 23013543420 is 2434531032.

23013543420 is a `hidden beast` number, since 2 + 301 + 354 + 3 + 4 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (23013543409) and next prime (23013543431).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 59160586 + ... + 59160974.

It is an arithmetic number, because the mean of its divisors is an integer number (151045440).

Almost surely, 2^23013543420 is an apocalyptic number.

23013543420 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 23013543420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43501086720).

23013543420 is an abundant number, since it is smaller than the sum of its proper divisors (63988630020).

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

23013543420 is a wasteful number, since it uses less digits than its factorization.

23013543420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The spelling of 23013543420 in words is "twenty-three billion, thirteen million, five hundred forty-three thousand, four hundred twenty".