13261302232450 has 96 divisors (see below), whose sum is σ = 25389974343888. Its totient is φ = 5149495296000.

The previous prime is 13261302232447. The next prime is 13261302232481. The reversal of 13261302232450 is 5423220316231.

It can be written as a sum of positive squares in 24 ways, for example, as 26309164401 + 13234993068049 = 162201^2 + 3637993^2 .

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, 1624956370 + ... + 1624964530.

Almost surely, 2^{13261302232450} is an apocalyptic number.

13261302232450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13261302232450 is a deficient number, since it is larger than the sum of its proper divisors (12128672111438).

13261302232450 is a wasteful number, since it uses less digits than its factorization.

13261302232450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10088 (or 10083 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 13261302232450 its reverse (5423220316231), we get a palindrome (18684522548681).

The spelling of 13261302232450 in words is "thirteen trillion, two hundred sixty-one billion, three hundred two million, two hundred thirty-two thousand, four hundred fifty".