121123103 has 2 divisors, whose sum is σ = 121123104. Its totient is φ = 121123102.

The previous prime is 121123099. The next prime is 121123109. The reversal of 121123103 is 301321121.

It is a weak prime.

It is an emirp because it is prime and its reverse (301321121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121123103 - 2² = 121123099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121123109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561551 + 60561552.

It is an arithmetic number, because the mean of its divisors is an integer number (60561552).

Almost surely, 2^121123103 is an apocalyptic number.

121123103 is a deficient number, since it is larger than the sum of its proper divisors (1).

121123103 is an equidigital number, since it uses as much as digits as its factorization.

121123103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 121123103 is about 11005.5941684218. The cubic root of 121123103 is about 494.7764225156.

Adding to 121123103 its reverse (301321121), we get a palindrome (422444224).

The spelling of 121123103 in words is "one hundred twenty-one million, one hundred twenty-three thousand, one hundred three".