121023106 has 4 divisors (see below), whose sum is σ = 181534662. Its totient is φ = 60511552.

The previous prime is 121023083. The next prime is 121023143. The reversal of 121023106 is 601320121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601320121 = 113 ⋅5321417.

It can be written as a sum of positive squares in only one way, i.e., 115756081 + 5267025 = 10759^2 + 2295^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121023106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30255775 + ... + 30255778.

Almost surely, 2^121023106 is an apocalyptic number.

121023106 is a deficient number, since it is larger than the sum of its proper divisors (60511556).

121023106 is an equidigital number, since it uses as much as digits as its factorization.

121023106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60511555.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 121023106 is about 11001.0502225924. The cubic root of 121023106 is about 494.6402255983.

Adding to 121023106 its reverse (601320121), we get a palindrome (722343227).

The spelling of 121023106 in words is "one hundred twenty-one million, twenty-three thousand, one hundred six".