2021211403 has 2 divisors, whose sum is σ = 2021211404. Its totient is φ = 2021211402.

The previous prime is 2021211397. The next prime is 2021211433. The reversal of 2021211403 is 3041121202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021211403 - 2²⁹ = 1484340491 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021211433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010605701 + 1010605702.

It is an arithmetic number, because the mean of its divisors is an integer number (1010605702).

Almost surely, 2^2021211403 is an apocalyptic number.

2021211403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021211403 is an equidigital number, since it uses as much as digits as its factorization.

2021211403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2021211403 is about 44957.8847700823. The cubic root of 2021211403 is about 1264.3595112053.

Adding to 2021211403 its reverse (3041121202), we get a palindrome (5062332605).

The spelling of 2021211403 in words is "two billion, twenty-one million, two hundred eleven thousand, four hundred three".