121266143163 has 48 divisors (see below), whose sum is σ = 202491900000. Its totient is φ = 69114839040.

The previous prime is 121266143149. The next prime is 121266143179. The reversal of 121266143163 is 361341662121.

121266143163 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 6 + 614 + 31 + 6 + 3 = 666.

It is not a de Polignac number, because 121266143163 - 2³⁰ = 120192401339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121266143863) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2073223 + ... + 2130911.

It is an arithmetic number, because the mean of its divisors is an integer number (4218581250).

Almost surely, 2^121266143163 is an apocalyptic number.

121266143163 is a deficient number, since it is larger than the sum of its proper divisors (81225756837).

121266143163 is a wasteful number, since it uses less digits than its factorization.

121266143163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58972 (or 58969 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The spelling of 121266143163 in words is "one hundred twenty-one billion, two hundred sixty-six million, one hundred forty-three thousand, one hundred sixty-three".