23015461530 has 64 divisors (see below), whose sum is σ = 56075846400. Its totient is φ = 6044451840.

The previous prime is 23015461529. The next prime is 23015461531. The reversal of 23015461530 is 3516451032.

It is an interprime number because it is at equal distance from previous prime (23015461529) and next prime (23015461531).

It is a super-2 number, since 2×23015461530² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (23015461531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2143816 + ... + 2154524.

It is an arithmetic number, because the mean of its divisors is an integer number (876185100).

Almost surely, 2^23015461530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23015461530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28037923200).

23015461530 is an abundant number, since it is smaller than the sum of its proper divisors (33060384870).

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

23015461530 is a wasteful number, since it uses less digits than its factorization.

23015461530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11799.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 23015461530 in words is "twenty-three billion, fifteen million, four hundred sixty-one thousand, five hundred thirty".