126243023 has 2 divisors, whose sum is σ = 126243024. Its totient is φ = 126243022.

The previous prime is 126242983. The next prime is 126243043. The reversal of 126243023 is 320342621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126243023 - 2⁶ = 126242959 is a prime.

It is a super-3 number, since 3×126243023³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126243023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126243043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63121511 + 63121512.

It is an arithmetic number, because the mean of its divisors is an integer number (63121512).

Almost surely, 2^126243023 is an apocalyptic number.

126243023 is a deficient number, since it is larger than the sum of its proper divisors (1).

126243023 is an equidigital number, since it uses as much as digits as its factorization.

126243023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 126243023 is about 11235.7920504075. The cubic root of 126243023 is about 501.6519004397.

Adding to 126243023 its reverse (320342621), we get a palindrome (446585644).

The spelling of 126243023 in words is "one hundred twenty-six million, two hundred forty-three thousand, twenty-three".