1212831528481 has 8 divisors (see below), whose sum is σ = 1215463392000. Its totient is φ = 1210201441680.

The previous prime is 1212831528473. The next prime is 1212831528487. The reversal of 1212831528481 is 1848251382121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212831528481 - 2³ = 1212831528473 is a prime.

It is a super-2 number, since 2×1212831528481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212831528487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927135 + ... + 1812523.

It is an arithmetic number, because the mean of its divisors is an integer number (151932924000).

Almost surely, 2^{1212831528481} is an apocalyptic number.

It is an amenable number.

1212831528481 is a deficient number, since it is larger than the sum of its proper divisors (2631863519).

1212831528481 is an equidigital number, since it uses as much as digits as its factorization.

1212831528481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888359.

The product of its digits is 245760, while the sum is 46.

The spelling of 1212831528481 in words is "one trillion, two hundred twelve billion, eight hundred thirty-one million, five hundred twenty-eight thousand, four hundred eighty-one".