13431013211111 has 16 divisors (see below), whose sum is σ = 14073358970880. Its totient is φ = 12802846013760.

The previous prime is 13431013211089. The next prime is 13431013211113. The reversal of 13431013211111 is 11111231013431.

It is a cyclic number.

It is not a de Polignac number, because 13431013211111 - 2³⁸ = 13156135304167 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 (13431013211113) 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, 8529275 + ... + 9980508.

It is an arithmetic number, because the mean of its divisors is an integer number (879584935680).

Almost surely, 2^{13431013211111} is an apocalyptic number.

13431013211111 is a deficient number, since it is larger than the sum of its proper divisors (642345759769).

13431013211111 is a wasteful number, since it uses less digits than its factorization.

13431013211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18510166.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 13431013211111 its reverse (11111231013431), we get a palindrome (24542244224542).

The spelling of 13431013211111 in words is "thirteen trillion, four hundred thirty-one billion, thirteen million, two hundred eleven thousand, one hundred eleven".