121055471 has 2 divisors, whose sum is σ = 121055472. Its totient is φ = 121055470.

The previous prime is 121055447. The next prime is 121055489. The reversal of 121055471 is 174550121.

It is a strong prime.

It is an emirp because it is prime and its reverse (174550121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121055471 - 2¹⁸ = 120793327 is a prime.

It is a super-3 number, since 3×121055471³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121055471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121055491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60527735 + 60527736.

It is an arithmetic number, because the mean of its divisors is an integer number (60527736).

Almost surely, 2^121055471 is an apocalyptic number.

121055471 is a deficient number, since it is larger than the sum of its proper divisors (1).

121055471 is an equidigital number, since it uses as much as digits as its factorization.

121055471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 121055471 is about 11002.5211201797. The cubic root of 121055471 is about 494.6843152618.

It can be divided in two parts, 12105 and 5471, that added together give a cube (17576 = 26³).

The spelling of 121055471 in words is "one hundred twenty-one million, fifty-five thousand, four hundred seventy-one".