121120111133 has 4 divisors (see below), whose sum is σ = 138422984160. Its totient is φ = 103817238108.

The previous prime is 121120111109. The next prime is 121120111159. The reversal of 121120111133 is 331111021121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121120111133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120111933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8651436503 + ... + 8651436516.

It is an arithmetic number, because the mean of its divisors is an integer number (34605746040).

Almost surely, 2^121120111133 is an apocalyptic number.

It is an amenable number.

121120111133 is a deficient number, since it is larger than the sum of its proper divisors (17302873027).

121120111133 is an equidigital number, since it uses as much as digits as its factorization.

121120111133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17302873026.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 121120111133 its reverse (331111021121), we get a palindrome (452231132254).

The spelling of 121120111133 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred eleven thousand, one hundred thirty-three".