121003132303121 has 4 divisors (see below), whose sum is σ = 121027542865332. Its totient is φ = 120978721740912.

The previous prime is 121003132303111. The next prime is 121003132303127. The reversal of 121003132303121 is 121303231300121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 109909643088400 + 11093489214721 = 10483780^2 + 3330689^2 .

It is a cyclic number.

It is not a de Polignac number, because 121003132303121 - 2¹⁰ = 121003132302097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121003132303127) 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, 12205273670 + ... + 12205283583.

It is an arithmetic number, because the mean of its divisors is an integer number (30256885716333).

Almost surely, 2^{121003132303121} is an apocalyptic number.

It is an amenable number.

121003132303121 is a deficient number, since it is larger than the sum of its proper divisors (24410562211).

121003132303121 is an equidigital number, since it uses as much as digits as its factorization.

121003132303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24410562210.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 121003132303121 its reverse (121303231300121), we get a palindrome (242306363603242).

The spelling of 121003132303121 in words is "one hundred twenty-one trillion, three billion, one hundred thirty-two million, three hundred three thousand, one hundred twenty-one".