121320413163 has 12 divisors (see below), whose sum is σ = 175281798120. Its totient is φ = 80861259456.

The previous prime is 121320413141. The next prime is 121320413183. The reversal of 121320413163 is 361314023121.

It is a happy number.

121320413163 is a `hidden beast` number, since 1 + 21 + 320 + 4 + 1 + 316 + 3 = 666.

It is not a de Polignac number, because 121320413163 - 2⁵ = 121320413131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121320413183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1544206 + ... + 1620867.

It is an arithmetic number, because the mean of its divisors is an integer number (14606816510).

Almost surely, 2^121320413163 is an apocalyptic number.

121320413163 is a deficient number, since it is larger than the sum of its proper divisors (53961384957).

121320413163 is a wasteful number, since it uses less digits than its factorization.

121320413163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169338 (or 3169335 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 121320413163 its reverse (361314023121), we get a palindrome (482634436284).

The spelling of 121320413163 in words is "one hundred twenty-one billion, three hundred twenty million, four hundred thirteen thousand, one hundred sixty-three".