121133123 has 2 divisors, whose sum is σ = 121133124. Its totient is φ = 121133122.

The previous prime is 121133101. The next prime is 121133141. The reversal of 121133123 is 321331121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121133123 - 2⁸ = 121132867 is a prime.

It is not a weakly prime, because it can be changed into another prime (121133323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60566561 + 60566562.

It is an arithmetic number, because the mean of its divisors is an integer number (60566562).

Almost surely, 2^121133123 is an apocalyptic number.

121133123 is a deficient number, since it is larger than the sum of its proper divisors (1).

121133123 is an equidigital number, since it uses as much as digits as its factorization.

121133123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 17.

The square root of 121133123 is about 11006.0493820444. The cubic root of 121133123 is about 494.7900657235.

Adding to 121133123 its reverse (321331121), we get a palindrome (442464244).

The spelling of 121133123 in words is "one hundred twenty-one million, one hundred thirty-three thousand, one hundred twenty-three".