121002132103 has 4 divisors (see below), whose sum is σ = 123576645600. Its totient is φ = 118427618608.

The previous prime is 121002132071. The next prime is 121002132107. The reversal of 121002132103 is 301231200121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121002132103 - 2⁵ = 121002132071 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 (121002132107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1287256678 + ... + 1287256771.

It is an arithmetic number, because the mean of its divisors is an integer number (30894161400).

Almost surely, 2^121002132103 is an apocalyptic number.

121002132103 is a deficient number, since it is larger than the sum of its proper divisors (2574513497).

121002132103 is an equidigital number, since it uses as much as digits as its factorization.

121002132103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574513496.

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

Adding to 121002132103 its reverse (301231200121), we get a palindrome (422233332224).

The spelling of 121002132103 in words is "one hundred twenty-one billion, two million, one hundred thirty-two thousand, one hundred three".