13120202111 has 4 divisors (see below), whose sum is σ = 13177495800. Its totient is φ = 13062908424.

The previous prime is 13120202093. The next prime is 13120202131. The reversal of 13120202111 is 11120202131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13120202111 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 (13120202131) 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, 28646501 + ... + 28646958.

It is an arithmetic number, because the mean of its divisors is an integer number (3294373950).

Almost surely, 2^13120202111 is an apocalyptic number.

13120202111 is a deficient number, since it is larger than the sum of its proper divisors (57293689).

13120202111 is an equidigital number, since it uses as much as digits as its factorization.

13120202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57293688.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 13120202111 its reverse (11120202131), we get a palindrome (24240404242).

It can be divided in two parts, 1312020 and 2111, that added together give a palindrome (1314131).

The spelling of 13120202111 in words is "thirteen billion, one hundred twenty million, two hundred two thousand, one hundred eleven".