103212111997 has 2 divisors, whose sum is σ = 103212111998. Its totient is φ = 103212111996.

The previous prime is 103212111973. The next prime is 103212112021. The reversal of 103212111997 is 799111212301.

It is a balanced prime because it is at equal distance from previous prime (103212111973) and next prime (103212112021).

It can be written as a sum of positive squares in only one way, i.e., 92374052761 + 10838059236 = 303931^2 + 104106^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103212111997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103212111097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51606055998 + 51606055999.

It is an arithmetic number, because the mean of its divisors is an integer number (51606055999).

Almost surely, 2^103212111997 is an apocalyptic number.

It is an amenable number.

103212111997 is a deficient number, since it is larger than the sum of its proper divisors (1).

103212111997 is an equidigital number, since it uses as much as digits as its factorization.

103212111997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 37.

The spelling of 103212111997 in words is "one hundred three billion, two hundred twelve million, one hundred eleven thousand, nine hundred ninety-seven".