1213415025420 has 96 divisors (see below), whose sum is σ = 3661272683712. Its totient is φ = 298494148608.

The previous prime is 1213415025401. The next prime is 1213415025467. The reversal of 1213415025420 is 245205143121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710484 + ... + 1712196.

It is an arithmetic number, because the mean of its divisors is an integer number (38138257122).

Almost surely, 2^{1213415025420} is an apocalyptic number.

1213415025420 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 1213415025420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1830636341856).

1213415025420 is an abundant number, since it is smaller than the sum of its proper divisors (2447857658292).

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

1213415025420 is a wasteful number, since it uses less digits than its factorization.

1213415025420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003291 (or 1003289 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 1213415025420 in words is "one trillion, two hundred thirteen billion, four hundred fifteen million, twenty-five thousand, four hundred twenty".