130021312111 has 4 divisors (see below), whose sum is σ = 130064670000. Its totient is φ = 129977954224.

The previous prime is 130021312103. The next prime is 130021312117. The reversal of 130021312111 is 111213120031.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 130021312111 - 2³ = 130021312103 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 (130021312117) 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, 21674446 + ... + 21680443.

It is an arithmetic number, because the mean of its divisors is an integer number (32516167500).

Almost surely, 2^130021312111 is an apocalyptic number.

130021312111 is a deficient number, since it is larger than the sum of its proper divisors (43357889).

130021312111 is an equidigital number, since it uses as much as digits as its factorization.

130021312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43357888.

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

Adding to 130021312111 its reverse (111213120031), we get a palindrome (241234432142).

The spelling of 130021312111 in words is "one hundred thirty billion, twenty-one million, three hundred twelve thousand, one hundred eleven".