126316421311 has 4 divisors (see below), whose sum is σ = 126765946224. Its totient is φ = 125866896400.

The previous prime is 126316421303. The next prime is 126316421327. The reversal of 126316421311 is 113124613621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126316421311 - 2³ = 126316421303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126316401311) 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, 224762035 + ... + 224762596.

It is an arithmetic number, because the mean of its divisors is an integer number (31691486556).

Almost surely, 2^126316421311 is an apocalyptic number.

126316421311 is a deficient number, since it is larger than the sum of its proper divisors (449524913).

126316421311 is an equidigital number, since it uses as much as digits as its factorization.

126316421311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449524912.

The product of its digits is 5184, while the sum is 31.

The spelling of 126316421311 in words is "one hundred twenty-six billion, three hundred sixteen million, four hundred twenty-one thousand, three hundred eleven".