1521213234245 has 32 divisors (see below), whose sum is σ = 1844028426240. Its totient is φ = 1204660800000.

The previous prime is 1521213234241. The next prime is 1521213234283. The reversal of 1521213234245 is 5424323121251.

It is not a de Polignac number, because 1521213234245 - 2² = 1521213234241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521213234241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342536225 + ... + 342540665.

It is an arithmetic number, because the mean of its divisors is an integer number (57625888320).

Almost surely, 2^{1521213234245} is an apocalyptic number.

It is an amenable number.

1521213234245 is a deficient number, since it is larger than the sum of its proper divisors (322815191995).

1521213234245 is a wasteful number, since it uses less digits than its factorization.

1521213234245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317.

The product of its digits is 57600, while the sum is 35.

Adding to 1521213234245 its reverse (5424323121251), we get a palindrome (6945536355496).

The spelling of 1521213234245 in words is "one trillion, five hundred twenty-one billion, two hundred thirteen million, two hundred thirty-four thousand, two hundred forty-five".