1230121311424 has 28 divisors (see below), whose sum is σ = 2525195152800. Its totient is φ = 593851666688.

The previous prime is 1230121311413. The next prime is 1230121311451. The reversal of 1230121311424 is 4241131210321.

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 3 ways as a sum of consecutive naturals, for example, 331388584 + ... + 331392295.

Almost surely, 2^{1230121311424} is an apocalyptic number.

It is an amenable number.

1230121311424 is an abundant number, since it is smaller than the sum of its proper divisors (1295073841376).

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

1230121311424 is an equidigital number, since it uses as much as digits as its factorization.

1230121311424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662780920 (or 662780910 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1230121311424 its reverse (4241131210321), we get a palindrome (5471252521745).

The spelling of 1230121311424 in words is "one trillion, two hundred thirty billion, one hundred twenty-one million, three hundred eleven thousand, four hundred twenty-four".