1232521613436 has 12 divisors (see below), whose sum is σ = 2875883764712. Its totient is φ = 410840537808.

The previous prime is 1232521613423. The next prime is 1232521613489. The reversal of 1232521613436 is 6343161252321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1232521613394 and 1232521613403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51355067215 + ... + 51355067238.

Almost surely, 2^{1232521613436} is an apocalyptic number.

It is an amenable number.

1232521613436 is an abundant number, since it is smaller than the sum of its proper divisors (1643362151276).

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

1232521613436 is a wasteful number, since it uses less digits than its factorization.

1232521613436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102710134460 (or 102710134458 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

Adding to 1232521613436 its reverse (6343161252321), we get a palindrome (7575682865757).

The spelling of 1232521613436 in words is "one trillion, two hundred thirty-two billion, five hundred twenty-one million, six hundred thirteen thousand, four hundred thirty-six".