30220131131 has 4 divisors (see below), whose sum is σ = 30264770112. Its totient is φ = 30175492152.

The previous prime is 30220131113. The next prime is 30220131133. The reversal of 30220131131 is 13113102203.

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-30220131131 is a prime.

It is a super-2 number, since 2×30220131131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30220131133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22318475 + ... + 22319828.

It is an arithmetic number, because the mean of its divisors is an integer number (7566192528).

Almost surely, 2^30220131131 is an apocalyptic number.

30220131131 is a deficient number, since it is larger than the sum of its proper divisors (44638981).

30220131131 is an equidigital number, since it uses as much as digits as its factorization.

30220131131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44638980.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30220131131 its reverse (13113102203), we get a palindrome (43333233334).

The spelling of 30220131131 in words is "thirty billion, two hundred twenty million, one hundred thirty-one thousand, one hundred thirty-one".