131213002111 has 4 divisors (see below), whose sum is σ = 131221980000. Its totient is φ = 131204024224.

The previous prime is 131213002087. The next prime is 131213002121. The reversal of 131213002111 is 111200312131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111200312131 = 73 ⋅1523291947.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131213002111 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 (131213002121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4466986 + ... + 4496263.

It is an arithmetic number, because the mean of its divisors is an integer number (32805495000).

Almost surely, 2^131213002111 is an apocalyptic number.

131213002111 is a deficient number, since it is larger than the sum of its proper divisors (8977889).

131213002111 is an equidigital number, since it uses as much as digits as its factorization.

131213002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977888.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 131213002111 its reverse (111200312131), we get a palindrome (242413314242).

The spelling of 131213002111 in words is "one hundred thirty-one billion, two hundred thirteen million, two thousand, one hundred eleven".