121131002103 has 8 divisors (see below), whose sum is σ = 167077244400. Its totient is φ = 77969380608.

The previous prime is 121131002039. The next prime is 121131002129. The reversal of 121131002103 is 301200131121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121131002103 - 2⁶ = 121131002039 is a prime.

It is a super-3 number, since 3×121131002103³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121131002143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696155098 + ... + 696155271.

It is an arithmetic number, because the mean of its divisors is an integer number (20884655550).

Almost surely, 2^121131002103 is an apocalyptic number.

121131002103 is a deficient number, since it is larger than the sum of its proper divisors (45946242297).

121131002103 is a wasteful number, since it uses less digits than its factorization.

121131002103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392310401.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 121131002103 its reverse (301200131121), we get a palindrome (422331133224).

The spelling of 121131002103 in words is "one hundred twenty-one billion, one hundred thirty-one million, two thousand, one hundred three".