1230121424 has 40 divisors (see below), whose sum is σ = 2726075520. Its totient is φ = 526762368.

The previous prime is 1230121423. The next prime is 1230121433. The reversal of 1230121424 is 4241210321.

It is a junction number, because it is equal to n+sod(n) for n = 1230121396 and 1230121405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230121423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158957 + ... + 166515.

It is an arithmetic number, because the mean of its divisors is an integer number (68151888).

Almost surely, 2^1230121424 is an apocalyptic number.

1230121424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1230121424 is an abundant number, since it is smaller than the sum of its proper divisors (1495954096).

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

1230121424 is a wasteful number, since it uses less digits than its factorization.

1230121424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9027 (or 9021 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1230121424 is about 35073.0868900928. The cubic root of 1230121424 is about 1071.4765256268.

Adding to 1230121424 its reverse (4241210321), we get a palindrome (5471331745).

The spelling of 1230121424 in words is "one billion, two hundred thirty million, one hundred twenty-one thousand, four hundred twenty-four".