71106500121 has 8 divisors (see below), whose sum is σ = 97121073504. Its totient is φ = 46248130080.

The previous prime is 71106500009. The next prime is 71106500147. The reversal of 71106500121 is 12100560117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71106500121 - 2¹⁹ = 71105975833 is a prime.

It is a super-2 number, since 2×71106500121² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71106500091 and 71106500100.

It is not an unprimeable number, because it can be changed into a prime (71106400121) 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, 289050691 + ... + 289050936.

It is an arithmetic number, because the mean of its divisors is an integer number (12140134188).

Almost surely, 2^71106500121 is an apocalyptic number.

It is an amenable number.

71106500121 is a deficient number, since it is larger than the sum of its proper divisors (26014573383).

71106500121 is a wasteful number, since it uses less digits than its factorization.

71106500121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578101671.

The product of its (nonzero) digits is 420, while the sum is 24.

The spelling of 71106500121 in words is "seventy-one billion, one hundred six million, five hundred thousand, one hundred twenty-one".