2021431103 has 2 divisors, whose sum is σ = 2021431104. Its totient is φ = 2021431102.

The previous prime is 2021431099. The next prime is 2021431133. The reversal of 2021431103 is 3011341202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021431103 - 2² = 2021431099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021431133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010715551 + 1010715552.

It is an arithmetic number, because the mean of its divisors is an integer number (1010715552).

Almost surely, 2^2021431103 is an apocalyptic number.

2021431103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021431103 is an equidigital number, since it uses as much as digits as its factorization.

2021431103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2021431103 is about 44960.3281015608. The cubic root of 2021431103 is about 1264.4053203209.

Adding to 2021431103 its reverse (3011341202), we get a palindrome (5032772305).

The spelling of 2021431103 in words is "two billion, twenty-one million, four hundred thirty-one thousand, one hundred three".