13121232233311 has 32 divisors (see below), whose sum is σ = 13581125179776. Its totient is φ = 12668850432000.

The previous prime is 13121232233269. The next prime is 13121232233323. The reversal of 13121232233311 is 11333223212131.

It is not a de Polignac number, because 13121232233311 - 2⁹ = 13121232232799 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 13121232233311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121232213311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1391282766 + ... + 1391292196.

It is an arithmetic number, because the mean of its divisors is an integer number (424410161868).

Almost surely, 2^{13121232233311} is an apocalyptic number.

13121232233311 is a deficient number, since it is larger than the sum of its proper divisors (459892946465).

13121232233311 is a wasteful number, since it uses less digits than its factorization.

13121232233311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10563.

The product of its digits is 3888, while the sum is 28.

Adding to 13121232233311 its reverse (11333223212131), we get a palindrome (24454455445442).

The spelling of 13121232233311 in words is "thirteen trillion, one hundred twenty-one billion, two hundred thirty-two million, two hundred thirty-three thousand, three hundred eleven".