121270830 has 32 divisors (see below), whose sum is σ = 298918944. Its totient is φ = 31464576.

The previous prime is 121270829. The next prime is 121270883. The reversal of 121270830 is 38072121.

It is a super-2 number, since 2×121270830² = 29413228417777800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121270830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53517 + ... + 55736.

It is an arithmetic number, because the mean of its divisors is an integer number (9341217).

Almost surely, 2^121270830 is an apocalyptic number.

121270830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121270830 is an abundant number, since it is smaller than the sum of its proper divisors (177648114).

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

121270830 is a wasteful number, since it uses less digits than its factorization.

121270830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109300.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 121270830 is about 11012.3035737306. The cubic root of 121270830 is about 494.9774910691.

The spelling of 121270830 in words is "one hundred twenty-one million, two hundred seventy thousand, eight hundred thirty".