126523551013 has 8 divisors (see below), whose sum is σ = 126884641536. Its totient is φ = 126162774000.

The previous prime is 126523550999. The next prime is 126523551041. The reversal of 126523551013 is 310155325621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126523551013 - 2⁵ = 126523550981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126523551013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126523551043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742120 + ... + 896542.

It is an arithmetic number, because the mean of its divisors is an integer number (15860580192).

Almost surely, 2^126523551013 is an apocalyptic number.

It is an amenable number.

126523551013 is a deficient number, since it is larger than the sum of its proper divisors (361090523).

126523551013 is a wasteful number, since it uses less digits than its factorization.

126523551013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156755.

The product of its (nonzero) digits is 27000, while the sum is 34.

Adding to 126523551013 its reverse (310155325621), we get a palindrome (436678876634).

The spelling of 126523551013 in words is "one hundred twenty-six billion, five hundred twenty-three million, five hundred fifty-one thousand, thirteen".