121013120103 has 8 divisors (see below), whose sum is σ = 161360271600. Its totient is φ = 80670691008.

The previous prime is 121013120027. The next prime is 121013120141. The reversal of 121013120103 is 301021310121.

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 121013120103 - 2¹⁶ = 121013054567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013120183) 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, 1120368 + ... + 1223621.

It is an arithmetic number, because the mean of its divisors is an integer number (20170033950).

Almost surely, 2^121013120103 is an apocalyptic number.

121013120103 is a deficient number, since it is larger than the sum of its proper divisors (40347151497).

121013120103 is a wasteful number, since it uses less digits than its factorization.

121013120103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361201.

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

Adding to 121013120103 its reverse (301021310121), we get a palindrome (422034430224).

The spelling of 121013120103 in words is "one hundred twenty-one billion, thirteen million, one hundred twenty thousand, one hundred three".