121023103 has 16 divisors (see below), whose sum is σ = 131171040. Its totient is φ = 111283200.

The previous prime is 121023083. The next prime is 121023143. The reversal of 121023103 is 301320121.

It is a cyclic number.

It is not a de Polignac number, because 121023103 - 2²⁵ = 87468671 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 (121023143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262293 + ... + 262753.

It is an arithmetic number, because the mean of its divisors is an integer number (8198190).

Almost surely, 2^121023103 is an apocalyptic number.

121023103 is a deficient number, since it is larger than the sum of its proper divisors (10147937).

121023103 is a wasteful number, since it uses less digits than its factorization.

121023103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 121023103 is about 11001.0500862418. The cubic root of 121023103 is about 494.6402215112.

Adding to 121023103 its reverse (301320121), we get a palindrome (422343224).

The spelling of 121023103 in words is "one hundred twenty-one million, twenty-three thousand, one hundred three".