121131013001 has 2 divisors, whose sum is σ = 121131013002. Its totient is φ = 121131013000.

The previous prime is 121131012967. The next prime is 121131013037. The reversal of 121131013001 is 100310131121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60676005625 + 60455007376 = 246325^2 + 245876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121131013001 is a prime.

It is not a weakly prime, because it can be changed into another prime (121131013051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60565506500 + 60565506501.

It is an arithmetic number, because the mean of its divisors is an integer number (60565506501).

Almost surely, 2^121131013001 is an apocalyptic number.

It is an amenable number.

121131013001 is a deficient number, since it is larger than the sum of its proper divisors (1).

121131013001 is an equidigital number, since it uses as much as digits as its factorization.

121131013001 is an odious number, because the sum of its binary digits is odd.

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

Adding to 121131013001 its reverse (100310131121), we get a palindrome (221441144122).

The spelling of 121131013001 in words is "one hundred twenty-one billion, one hundred thirty-one million, thirteen thousand, one".