121131011003 has 2 divisors, whose sum is σ = 121131011004. Its totient is φ = 121131011002.

The previous prime is 121131010963. The next prime is 121131011009. The reversal of 121131011003 is 300110131121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121131011003 - 2²⁴ = 121114233787 is a prime.

It is not a weakly prime, because it can be changed into another prime (121131011009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60565505501 + 60565505502.

It is an arithmetic number, because the mean of its divisors is an integer number (60565505502).

Almost surely, 2^121131011003 is an apocalyptic number.

121131011003 is a deficient number, since it is larger than the sum of its proper divisors (1).

121131011003 is an equidigital number, since it uses as much as digits as its factorization.

121131011003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 121131011003 its reverse (300110131121), we get a palindrome (421241142124).

The spelling of 121131011003 in words is "one hundred twenty-one billion, one hundred thirty-one million, eleven thousand, three".