103212314021 has 2 divisors, whose sum is σ = 103212314022. Its totient is φ = 103212314020.

The previous prime is 103212313943. The next prime is 103212314053. The reversal of 103212314021 is 120413212301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93001211521 + 10211102500 = 304961^2 + 101050^2 .

It is a cyclic number.

It is not a de Polignac number, because 103212314021 - 2¹⁰ = 103212312997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103212313984 and 103212314002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103212314071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51606157010 + 51606157011.

It is an arithmetic number, because the mean of its divisors is an integer number (51606157011).

Almost surely, 2^103212314021 is an apocalyptic number.

It is an amenable number.

103212314021 is a deficient number, since it is larger than the sum of its proper divisors (1).

103212314021 is an equidigital number, since it uses as much as digits as its factorization.

103212314021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 103212314021 its reverse (120413212301), we get a palindrome (223625526322).

The spelling of 103212314021 in words is "one hundred three billion, two hundred twelve million, three hundred fourteen thousand, twenty-one".