126880123 has 2 divisors, whose sum is σ = 126880124. Its totient is φ = 126880122.

The previous prime is 126880097. The next prime is 126880147. The reversal of 126880123 is 321088621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126880123 - 2²¹ = 124782971 is a prime.

It is a super-2 number, since 2×126880123² = 32197131224990258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126880153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63440061 + 63440062.

It is an arithmetic number, because the mean of its divisors is an integer number (63440062).

Almost surely, 2^126880123 is an apocalyptic number.

126880123 is a deficient number, since it is larger than the sum of its proper divisors (1).

126880123 is an equidigital number, since it uses as much as digits as its factorization.

126880123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 126880123 is about 11264.1077320842. The cubic root of 126880123 is about 502.4943662479.

The spelling of 126880123 in words is "one hundred twenty-six million, eight hundred eighty thousand, one hundred twenty-three".