121711471 has 16 divisors (see below), whose sum is σ = 141134400. Its totient is φ = 102809088.

The previous prime is 121711453. The next prime is 121711477. The reversal of 121711471 is 174117121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121711471 is a prime.

It is a super-3 number, since 3×121711471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121711477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204951 + ... + 205543.

It is an arithmetic number, because the mean of its divisors is an integer number (8820900).

Almost surely, 2^121711471 is an apocalyptic number.

121711471 is a deficient number, since it is larger than the sum of its proper divisors (19422929).

121711471 is a wasteful number, since it uses less digits than its factorization.

121711471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978.

The product of its digits is 392, while the sum is 25.

The square root of 121711471 is about 11032.2921915620. The cubic root of 121711471 is about 495.5762713423.

Adding to 121711471 its reverse (174117121), we get a palindrome (295828592).

The spelling of 121711471 in words is "one hundred twenty-one million, seven hundred eleven thousand, four hundred seventy-one".