121123340430 has 64 divisors (see below), whose sum is σ = 302436384768. Its totient is φ = 31011482880.

The previous prime is 121123340423. The next prime is 121123340441. The reversal of 121123340430 is 34043321121.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121123340430.

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, 394647 + ... + 630866.

It is an arithmetic number, because the mean of its divisors is an integer number (4725568512).

Almost surely, 2^121123340430 is an apocalyptic number.

121123340430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121123340430 is an abundant number, since it is smaller than the sum of its proper divisors (181313044338).

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

121123340430 is a wasteful number, since it uses less digits than its factorization.

121123340430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025681.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121123340430 its reverse (34043321121), we get a palindrome (155166661551).

The spelling of 121123340430 in words is "one hundred twenty-one billion, one hundred twenty-three million, three hundred forty thousand, four hundred thirty".