1003212101 has 2 divisors, whose sum is σ = 1003212102. Its totient is φ = 1003212100.

The previous prime is 1003212061. The next prime is 1003212113. The reversal of 1003212101 is 1012123001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 587092900 + 416119201 = 24230^2 + 20399^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003212101 - 2¹⁴ = 1003195717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1003212151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501606050 + 501606051.

It is an arithmetic number, because the mean of its divisors is an integer number (501606051).

Almost surely, 2^1003212101 is an apocalyptic number.

It is an amenable number.

1003212101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003212101 is an equidigital number, since it uses as much as digits as its factorization.

1003212101 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.

The square root of 1003212101 is about 31673.5236593594. The cubic root of 1003212101 is about 1001.0695559755.

Adding to 1003212101 its reverse (1012123001), we get a palindrome (2015335102).

The spelling of 1003212101 in words is "one billion, three million, two hundred twelve thousand, one hundred one".