126020203 has 2 divisors, whose sum is σ = 126020204. Its totient is φ = 126020202.

The previous prime is 126020171. The next prime is 126020249. The reversal of 126020203 is 302020621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126020203 - 2⁵ = 126020171 is a prime.

It is a super-2 number, since 2×126020203² = 31762183128322418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126020003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63010101 + 63010102.

It is an arithmetic number, because the mean of its divisors is an integer number (63010102).

Almost surely, 2^126020203 is an apocalyptic number.

126020203 is a deficient number, since it is larger than the sum of its proper divisors (1).

126020203 is an equidigital number, since it uses as much as digits as its factorization.

126020203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 126020203 is about 11225.8720373965. The cubic root of 126020203 is about 501.3565866831.

Adding to 126020203 its reverse (302020621), we get a palindrome (428040824).

The spelling of 126020203 in words is "one hundred twenty-six million, twenty thousand, two hundred three".