23530061312 has 80 divisors (see below), whose sum is σ = 49147702560. Its totient is φ = 11233001472.

The previous prime is 23530061309. The next prime is 23530061323. The reversal of 23530061312 is 21316003532.

It is a super-2 number, since 2×23530061312² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7923764 + ... + 7926732.

It is an arithmetic number, because the mean of its divisors is an integer number (614346282).

Almost surely, 2^23530061312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23530061312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24573851280).

23530061312 is an abundant number, since it is smaller than the sum of its proper divisors (25617641248).

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

23530061312 is an equidigital number, since it uses as much as digits as its factorization.

23530061312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3683 (or 3667 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 23530061312 its reverse (21316003532), we get a palindrome (44846064844).

The spelling of 23530061312 in words is "twenty-three billion, five hundred thirty million, sixty-one thousand, three hundred twelve".