212146420103 has 2 divisors, whose sum is σ = 212146420104. Its totient is φ = 212146420102.

The previous prime is 212146420099. The next prime is 212146420133. The reversal of 212146420103 is 301024641212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212146420103 - 2² = 212146420099 is a prime.

It is a super-2 number, since 2×212146420103² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212146420133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106073210051 + 106073210052.

It is an arithmetic number, because the mean of its divisors is an integer number (106073210052).

Almost surely, 2^212146420103 is an apocalyptic number.

212146420103 is a deficient number, since it is larger than the sum of its proper divisors (1).

212146420103 is an equidigital number, since it uses as much as digits as its factorization.

212146420103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 212146420103 in words is "two hundred twelve billion, one hundred forty-six million, four hundred twenty thousand, one hundred three".