121030456 has 32 divisors (see below), whose sum is σ = 247122000. Its totient is φ = 55351296.

The previous prime is 121030451. The next prime is 121030457. The reversal of 121030456 is 654030121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121030451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9321 + ... + 18136.

Almost surely, 2^121030456 is an apocalyptic number.

It is an amenable number.

121030456 is an abundant number, since it is smaller than the sum of its proper divisors (126091544).

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

121030456 is a wasteful number, since it uses less digits than its factorization.

121030456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27511 (or 27507 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 121030456 is about 11001.3842765354. The cubic root of 121030456 is about 494.6502389260.

Adding to 121030456 its reverse (654030121), we get a palindrome (775060577).

The spelling of 121030456 in words is "one hundred twenty-one million, thirty thousand, four hundred fifty-six".