126523436143101 has 4 divisors (see below), whose sum is σ = 168697914857472. Its totient is φ = 84348957428732.

The previous prime is 126523436143081. The next prime is 126523436143151. The reversal of 126523436143101 is 101341634325621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126523436143101 - 2⁶ = 126523436143037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126523436143151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21087239357181 + ... + 21087239357186.

It is an arithmetic number, because the mean of its divisors is an integer number (42174478714368).

Almost surely, 2^{126523436143101} is an apocalyptic number.

It is an amenable number.

126523436143101 is a deficient number, since it is larger than the sum of its proper divisors (42174478714371).

126523436143101 is an equidigital number, since it uses as much as digits as its factorization.

126523436143101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42174478714370.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 126523436143101 in words is "one hundred twenty-six trillion, five hundred twenty-three billion, four hundred thirty-six million, one hundred forty-three thousand, one hundred one".