1326526256231 has 6 divisors (see below), whose sum is σ = 1458082579296. Its totient is φ = 1205932960100.

The previous prime is 1326526256197. The next prime is 1326526256261.

1326526256231 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1326526256231 - 2¹⁰ = 1326526255207 is a prime.

It is a super-2 number, since 2×1326526256231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326526256261) 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 5 ways as a sum of consecutive naturals, for example, 5481513335 + ... + 5481513576.

It is an arithmetic number, because the mean of its divisors is an integer number (243013763216).

Almost surely, 2^{1326526256231} is an apocalyptic number.

1326526256231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1326526256231 is a deficient number, since it is larger than the sum of its proper divisors (131556323065).

1326526256231 is a wasteful number, since it uses less digits than its factorization.

1326526256231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10963026933 (or 10963026922 counting only the distinct ones).

The product of its digits is 777600, while the sum is 44.

The spelling of 1326526256231 in words is "one trillion, three hundred twenty-six billion, five hundred twenty-six million, two hundred fifty-six thousand, two hundred thirty-one".