126234255513 has 4 divisors (see below), whose sum is σ = 168312340688. Its totient is φ = 84156170340.

The previous prime is 126234255509. The next prime is 126234255541. The reversal of 126234255513 is 315552432621.

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, and also an emirpimes, since its reverse is a distinct semiprime: 315552432621 = 3 ⋅105184144207.

It is not a de Polignac number, because 126234255513 - 2² = 126234255509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126234255583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21039042583 + ... + 21039042588.

It is an arithmetic number, because the mean of its divisors is an integer number (42078085172).

Almost surely, 2^126234255513 is an apocalyptic number.

It is an amenable number.

126234255513 is a deficient number, since it is larger than the sum of its proper divisors (42078085175).

126234255513 is an equidigital number, since it uses as much as digits as its factorization.

126234255513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42078085174.

The product of its digits is 216000, while the sum is 39.

The spelling of 126234255513 in words is "one hundred twenty-six billion, two hundred thirty-four million, two hundred fifty-five thousand, five hundred thirteen".