121131121101 has 8 divisors (see below), whose sum is σ = 162989888160. Its totient is φ = 80013217392.

The previous prime is 121131121093. The next prime is 121131121141. The reversal of 121131121101 is 101121131121.

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

It is not a de Polignac number, because 121131121101 - 2³ = 121131121093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121131121141) 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, 185215455 + ... + 185216108.

It is an arithmetic number, because the mean of its divisors is an integer number (20373736020).

Almost surely, 2^121131121101 is an apocalyptic number.

It is an amenable number.

121131121101 is a deficient number, since it is larger than the sum of its proper divisors (41858767059).

121131121101 is a wasteful number, since it uses less digits than its factorization.

121131121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370431675.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 121131121101 its reverse (101121131121), we get a palindrome (222252252222).

It can be divided in two parts, 121131121 and 101, that multiplied together give a palindrome (12234243221).

The spelling of 121131121101 in words is "one hundred twenty-one billion, one hundred thirty-one million, one hundred twenty-one thousand, one hundred one".