1232016512 has 64 divisors (see below), whose sum is σ = 2581140600. Its totient is φ = 584908800.

The previous prime is 1232016479. The next prime is 1232016553. The reversal of 1232016512 is 2156102321.

It can be written as a sum of positive squares in 4 ways, for example, as 879478336 + 352538176 = 29656^2 + 18776^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1232016512² = 3035729371681292288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223712 + ... + 229152.

Almost surely, 2^1232016512 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 1232016512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1290570300).

1232016512 is an abundant number, since it is smaller than the sum of its proper divisors (1349124088).

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

1232016512 is an equidigital number, since it uses as much as digits as its factorization.

1232016512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5545 (or 5533 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1232016512 is about 35100.0927634102. The cubic root of 1232016512 is about 1072.0264714633.

Adding to 1232016512 its reverse (2156102321), we get a palindrome (3388118833).

The spelling of 1232016512 in words is "one billion, two hundred thirty-two million, sixteen thousand, five hundred twelve".