109835123103157 has 2 divisors, whose sum is σ = 109835123103158. Its totient is φ = 109835123103156.

The previous prime is 109835123103133. The next prime is 109835123103259. The reversal of 109835123103157 is 751301321538901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67392425885521 + 42442697217636 = 8209289^2 + 6514806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109835123103157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109835123103157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109835123103857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54917561551578 + 54917561551579.

It is an arithmetic number, because the mean of its divisors is an integer number (54917561551579).

Almost surely, 2^{109835123103157} is an apocalyptic number.

It is an amenable number.

109835123103157 is a deficient number, since it is larger than the sum of its proper divisors (1).

109835123103157 is an equidigital number, since it uses as much as digits as its factorization.

109835123103157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 49.

The spelling of 109835123103157 in words is "one hundred nine trillion, eight hundred thirty-five billion, one hundred twenty-three million, one hundred three thousand, one hundred fifty-seven".