100121001211003 has 2 divisors, whose sum is σ = 100121001211004. Its totient is φ = 100121001211002.

The previous prime is 100121001211001. The next prime is 100121001211031. The reversal of 100121001211003 is 300112100121001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100121001211003 - 2¹ = 100121001211001 is a prime.

Together with 100121001211001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (100121001211001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060500605501 + 50060500605502.

It is an arithmetic number, because the mean of its divisors is an integer number (50060500605502).

Almost surely, 2^{100121001211003} is an apocalyptic number.

100121001211003 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121001211003 is an equidigital number, since it uses as much as digits as its factorization.

100121001211003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 100121001211003 its reverse (300112100121001), we get a palindrome (400233101332004).

The spelling of 100121001211003 in words is "one hundred trillion, one hundred twenty-one billion, one million, two hundred eleven thousand, three".