103120132991 has 2 divisors, whose sum is σ = 103120132992. Its totient is φ = 103120132990.

The previous prime is 103120132957. The next prime is 103120133033. The reversal of 103120132991 is 199231021301.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103120132991 is a prime.

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 (103120132901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51560066495 + 51560066496.

It is an arithmetic number, because the mean of its divisors is an integer number (51560066496).

Almost surely, 2^103120132991 is an apocalyptic number.

103120132991 is a deficient number, since it is larger than the sum of its proper divisors (1).

103120132991 is an equidigital number, since it uses as much as digits as its factorization.

103120132991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 103120132991 in words is "one hundred three billion, one hundred twenty million, one hundred thirty-two thousand, nine hundred ninety-one".