121273430 has 8 divisors (see below), whose sum is σ = 218292192. Its totient is φ = 48509368.

The previous prime is 121273423. The next prime is 121273433. The reversal of 121273430 is 34372121.

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 = 121273396 and 121273405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121273433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6063662 + ... + 6063681.

It is an arithmetic number, because the mean of its divisors is an integer number (27286524).

Almost surely, 2^121273430 is an apocalyptic number.

121273430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121273430 is a deficient number, since it is larger than the sum of its proper divisors (97018762).

121273430 is a wasteful number, since it uses less digits than its factorization.

121273430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12127350.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 121273430 is about 11012.4216228766. The cubic root of 121273430 is about 494.9810284196.

The spelling of 121273430 in words is "one hundred twenty-one million, two hundred seventy-three thousand, four hundred thirty".