121425424320 has 112 divisors (see below), whose sum is σ = 385599371040. Its totient is φ = 32373927936.

The previous prime is 121425424303. The next prime is 121425424327. The reversal of 121425424320 is 23424524121.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121425424327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7353994 + ... + 7370486.

Almost surely, 2^121425424320 is an apocalyptic number.

121425424320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121425424320 is an abundant number, since it is smaller than the sum of its proper divisors (264173946720).

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

121425424320 is a wasteful number, since it uses less digits than its factorization.

121425424320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24182 (or 24172 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 121425424320 its reverse (23424524121), we get a palindrome (144849948441).

The spelling of 121425424320 in words is "one hundred twenty-one billion, four hundred twenty-five million, four hundred twenty-four thousand, three hundred twenty".