121431430 has 8 divisors (see below), whose sum is σ = 218576592. Its totient is φ = 48572568.

The previous prime is 121431383. The next prime is 121431461. The reversal of 121431430 is 34134121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121431398 and 121431407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6071562 + ... + 6071581.

It is an arithmetic number, because the mean of its divisors is an integer number (27322074).

Almost surely, 2^121431430 is an apocalyptic number.

121431430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121431430 is a deficient number, since it is larger than the sum of its proper divisors (97145162).

121431430 is a wasteful number, since it uses less digits than its factorization.

121431430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12143150.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 121431430 is about 11019.5930051885. The cubic root of 121431430 is about 495.1958956643.

Adding to 121431430 its reverse (34134121), we get a palindrome (155565551).

The spelling of 121431430 in words is "one hundred twenty-one million, four hundred thirty-one thousand, four hundred thirty".