121841123 has 2 divisors, whose sum is σ = 121841124. Its totient is φ = 121841122.

The previous prime is 121841119. The next prime is 121841131. The reversal of 121841123 is 321148121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121841123 - 2² = 121841119 is a prime.

It is a super-2 number, since 2×121841123² = 29690518507802258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121841723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60920561 + 60920562.

It is an arithmetic number, because the mean of its divisors is an integer number (60920562).

Almost surely, 2^121841123 is an apocalyptic number.

121841123 is a deficient number, since it is larger than the sum of its proper divisors (1).

121841123 is an equidigital number, since it uses as much as digits as its factorization.

121841123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 23.

The square root of 121841123 is about 11038.1666503093. The cubic root of 121841123 is about 495.7521782171.

Adding to 121841123 its reverse (321148121), we get a palindrome (442989244).

The spelling of 121841123 in words is "one hundred twenty-one million, eight hundred forty-one thousand, one hundred twenty-three".