212003556103 has 2 divisors, whose sum is σ = 212003556104. Its totient is φ = 212003556102.

The previous prime is 212003556047. The next prime is 212003556139. The reversal of 212003556103 is 301655300212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212003556103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212003556143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106001778051 + 106001778052.

It is an arithmetic number, because the mean of its divisors is an integer number (106001778052).

Almost surely, 2^212003556103 is an apocalyptic number.

212003556103 is a deficient number, since it is larger than the sum of its proper divisors (1).

212003556103 is an equidigital number, since it uses as much as digits as its factorization.

212003556103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 212003556103 its reverse (301655300212), we get a palindrome (513658856315).

The spelling of 212003556103 in words is "two hundred twelve billion, three million, five hundred fifty-six thousand, one hundred three".