13123335043231 has 16 divisors (see below), whose sum is σ = 15112839506688. Its totient is φ = 11162519035200.

The previous prime is 13123335043223. The next prime is 13123335043253. The reversal of 13123335043231 is 13234053332131.

It is a cyclic number.

It is not a de Polignac number, because 13123335043231 - 2³ = 13123335043223 is a prime.

It is a super-2 number, since 2×13123335043231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123335047231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103898091 + ... + 104024323.

It is an arithmetic number, because the mean of its divisors is an integer number (944552469168).

Almost surely, 2^{13123335043231} is an apocalyptic number.

13123335043231 is a deficient number, since it is larger than the sum of its proper divisors (1989504463457).

13123335043231 is a wasteful number, since it uses less digits than its factorization.

13123335043231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239742.

The product of its (nonzero) digits is 58320, while the sum is 34.

Adding to 13123335043231 its reverse (13234053332131), we get a palindrome (26357388375362).

The spelling of 13123335043231 in words is "thirteen trillion, one hundred twenty-three billion, three hundred thirty-five million, forty-three thousand, two hundred thirty-one".