105123127 has 2 divisors, whose sum is σ = 105123128. Its totient is φ = 105123126.

The previous prime is 105123119. The next prime is 105123157. The reversal of 105123127 is 721321501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105123127 - 2³ = 105123119 is a prime.

It is a super-2 number, since 2×105123127² = 22101743660516258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105123098 and 105123107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105123157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52561563 + 52561564.

It is an arithmetic number, because the mean of its divisors is an integer number (52561564).

Almost surely, 2^105123127 is an apocalyptic number.

105123127 is a deficient number, since it is larger than the sum of its proper divisors (1).

105123127 is an equidigital number, since it uses as much as digits as its factorization.

105123127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 105123127 is about 10252.9569881084. The cubic root of 105123127 is about 471.9537309213.

Adding to 105123127 its reverse (721321501), we get a palindrome (826444628).

The spelling of 105123127 in words is "one hundred five million, one hundred twenty-three thousand, one hundred twenty-seven".