171121341512 has 32 divisors (see below), whose sum is σ = 350420195520. Its totient is φ = 77693701440.

The previous prime is 171121341509. The next prime is 171121341553. The reversal of 171121341512 is 215143121171.

It is a super-2 number, since 2×171121341512² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1031468 + ... + 1185819.

It is an arithmetic number, because the mean of its divisors is an integer number (10950631110).

Almost surely, 2^171121341512 is an apocalyptic number.

It is an amenable number.

171121341512 is an abundant number, since it is smaller than the sum of its proper divisors (179298854008).

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

171121341512 is a wasteful number, since it uses less digits than its factorization.

171121341512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218181 (or 2218177 counting only the distinct ones).

The product of its digits is 1680, while the sum is 29.

Adding to 171121341512 its reverse (215143121171), we get a palindrome (386264462683).

The spelling of 171121341512 in words is "one hundred seventy-one billion, one hundred twenty-one million, three hundred forty-one thousand, five hundred twelve".