121323430 has 16 divisors (see below), whose sum is σ = 218519280. Its totient is φ = 48498912.

The previous prime is 121323409. The next prime is 121323473. The reversal of 121323430 is 34323121.

It is a junction number, because it is equal to n+sod(n) for n = 121323398 and 121323407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20017 + ... + 25363.

It is an arithmetic number, because the mean of its divisors is an integer number (13657455).

Almost surely, 2^121323430 is an apocalyptic number.

121323430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121323430 is a deficient number, since it is larger than the sum of its proper divisors (97195850).

121323430 is a wasteful number, since it uses less digits than its factorization.

121323430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7623.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 121323430 is about 11014.6915526491. The cubic root of 121323430 is about 495.0490445572.

Adding to 121323430 its reverse (34323121), we get a palindrome (155646551).

The spelling of 121323430 in words is "one hundred twenty-one million, three hundred twenty-three thousand, four hundred thirty".