127220123 has 2 divisors, whose sum is σ = 127220124. Its totient is φ = 127220122.

The previous prime is 127220081. The next prime is 127220161. The reversal of 127220123 is 321022721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 127220123 - 2⁸ = 127219867 is a prime.

It is a super-2 number, since 2×127220123² = 32369919392270258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127220095 and 127220104.

It is not a weakly prime, because it can be changed into another prime (127220323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63610061 + 63610062.

It is an arithmetic number, because the mean of its divisors is an integer number (63610062).

Almost surely, 2^127220123 is an apocalyptic number.

127220123 is a deficient number, since it is larger than the sum of its proper divisors (1).

127220123 is an equidigital number, since it uses as much as digits as its factorization.

127220123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 127220123 is about 11279.1898201954. The cubic root of 127220123 is about 502.9428097613.

Adding to 127220123 its reverse (321022721), we get a palindrome (448242844).

The spelling of 127220123 in words is "one hundred twenty-seven million, two hundred twenty thousand, one hundred twenty-three".