121434424430 has 64 divisors (see below), whose sum is σ = 244384874496. Its totient is φ = 43060512000.

The previous prime is 121434424411. The next prime is 121434424453. The reversal of 121434424430 is 34424434121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12005075 + ... + 12015185.

It is an arithmetic number, because the mean of its divisors is an integer number (3818513664).

Almost surely, 2^121434424430 is an apocalyptic number.

121434424430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121434424430 is an abundant number, since it is smaller than the sum of its proper divisors (122950450066).

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

121434424430 is a wasteful number, since it uses less digits than its factorization.

121434424430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12833.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 121434424430 its reverse (34424434121), we get a palindrome (155858858551).

The spelling of 121434424430 in words is "one hundred twenty-one billion, four hundred thirty-four million, four hundred twenty-four thousand, four hundred thirty".