121102123102 has 4 divisors (see below), whose sum is σ = 181653184656. Its totient is φ = 60551061550.

The previous prime is 121102123067. The next prime is 121102123147. The reversal of 121102123102 is 201321201121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201321201121 = 241 ⋅835357681.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30275530774 + ... + 30275530777.

It is an arithmetic number, because the mean of its divisors is an integer number (45413296164).

Almost surely, 2^121102123102 is an apocalyptic number.

121102123102 is a deficient number, since it is larger than the sum of its proper divisors (60551061554).

121102123102 is an equidigital number, since it uses as much as digits as its factorization.

121102123102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60551061553.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121102123102 its reverse (201321201121), we get a palindrome (322423324223).

The spelling of 121102123102 in words is "one hundred twenty-one billion, one hundred two million, one hundred twenty-three thousand, one hundred two".