1213554324425 has 24 divisors (see below), whose sum is σ = 1578360395136. Its totient is φ = 924506447040.

The previous prime is 1213554324403. The next prime is 1213554324467. The reversal of 1213554324425 is 5244234553121.

It is a de Polignac number, because none of the positive numbers 2^k-1213554324425 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13913447 + ... + 14000396.

It is an arithmetic number, because the mean of its divisors is an integer number (65765016464).

Almost surely, 2^{1213554324425} is an apocalyptic number.

It is an amenable number.

1213554324425 is a deficient number, since it is larger than the sum of its proper divisors (364806070711).

1213554324425 is a wasteful number, since it uses less digits than its factorization.

1213554324425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27913937 (or 27913932 counting only the distinct ones).

The product of its digits is 576000, while the sum is 41.

Adding to 1213554324425 its reverse (5244234553121), we get a palindrome (6457788877546).

The spelling of 1213554324425 in words is "one trillion, two hundred thirteen billion, five hundred fifty-four million, three hundred twenty-four thousand, four hundred twenty-five".