210100121003 has 2 divisors, whose sum is σ = 210100121004. Its totient is φ = 210100121002.

The previous prime is 210100120981. The next prime is 210100121039. The reversal of 210100121003 is 300121001012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210100121003 - 2¹² = 210100116907 is a prime.

It is not a weakly prime, because it can be changed into another prime (210100121053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105050060501 + 105050060502.

It is an arithmetic number, because the mean of its divisors is an integer number (105050060502).

Almost surely, 2^210100121003 is an apocalyptic number.

210100121003 is a deficient number, since it is larger than the sum of its proper divisors (1).

210100121003 is an equidigital number, since it uses as much as digits as its factorization.

210100121003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 210100121003 its reverse (300121001012), we get a palindrome (510221122015).

The spelling of 210100121003 in words is "two hundred ten billion, one hundred million, one hundred twenty-one thousand, three".