1232521134460 has 144 divisors (see below), whose sum is σ = 3301100006400. Its totient is φ = 382231301760.

The previous prime is 1232521134457. The next prime is 1232521134479. The reversal of 1232521134460 is 644311252321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1857949 + ... + 2432491.

It is an arithmetic number, because the mean of its divisors is an integer number (22924305600).

Almost surely, 2^{1232521134460} is an apocalyptic number.

1232521134460 is a gapful number since it is divisible by the number (10) 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 1232521134460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1650550003200).

1232521134460 is an abundant number, since it is smaller than the sum of its proper divisors (2068578871940).

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

1232521134460 is a wasteful number, since it uses less digits than its factorization.

1232521134460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574776 (or 574767 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 1232521134460 its reverse (644311252321), we get a palindrome (1876832386781).

The spelling of 1232521134460 in words is "one trillion, two hundred thirty-two billion, five hundred twenty-one million, one hundred thirty-four thousand, four hundred sixty".