103112103221 has 2 divisors, whose sum is σ = 103112103222. Its totient is φ = 103112103220.

The previous prime is 103112103191. The next prime is 103112103233. The reversal of 103112103221 is 122301211301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96730330225 + 6381772996 = 311015^2 + 79886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103112103221 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 103112103221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103112103271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51556051610 + 51556051611.

It is an arithmetic number, because the mean of its divisors is an integer number (51556051611).

Almost surely, 2^103112103221 is an apocalyptic number.

It is an amenable number.

103112103221 is a deficient number, since it is larger than the sum of its proper divisors (1).

103112103221 is an equidigital number, since it uses as much as digits as its factorization.

103112103221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 103112103221 its reverse (122301211301), we get a palindrome (225413314522).

The spelling of 103112103221 in words is "one hundred three billion, one hundred twelve million, one hundred three thousand, two hundred twenty-one".