220131213013 has 4 divisors (see below), whose sum is σ = 220132952928. Its totient is φ = 220129473100.

The previous prime is 220131212993. The next prime is 220131213059. The reversal of 220131213013 is 310312131022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220131213013 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 (220131213073) 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, 663913 + ... + 938638.

It is an arithmetic number, because the mean of its divisors is an integer number (55033238232).

Almost surely, 2^220131213013 is an apocalyptic number.

It is an amenable number.

220131213013 is a deficient number, since it is larger than the sum of its proper divisors (1739915).

220131213013 is a wasteful number, since it uses less digits than its factorization.

220131213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739914.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 220131213013 its reverse (310312131022), we get a palindrome (530443344035).

The spelling of 220131213013 in words is "two hundred twenty billion, one hundred thirty-one million, two hundred thirteen thousand, thirteen".