121123033331 has 4 divisors (see below), whose sum is σ = 121994422200. Its totient is φ = 120251644464.

The previous prime is 121123033327. The next prime is 121123033379. The reversal of 121123033331 is 133330321121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121123033331 - 2² = 121123033327 is a prime.

It is a super-2 number, since 2×121123033331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121123033297 and 121123033306.

It is not an unprimeable number, because it can be changed into a prime (121123033391) 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, 435694226 + ... + 435694503.

It is an arithmetic number, because the mean of its divisors is an integer number (30498605550).

Almost surely, 2^121123033331 is an apocalyptic number.

121123033331 is a deficient number, since it is larger than the sum of its proper divisors (871388869).

121123033331 is an equidigital number, since it uses as much as digits as its factorization.

121123033331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871388868.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 121123033331 its reverse (133330321121), we get a palindrome (254453354452).

The spelling of 121123033331 in words is "one hundred twenty-one billion, one hundred twenty-three million, thirty-three thousand, three hundred thirty-one".