220332231131 has 4 divisors (see below), whose sum is σ = 223435502064. Its totient is φ = 217228960200.

The previous prime is 220332231127. The next prime is 220332231151. The reversal of 220332231131 is 131132233022.

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 220332231131 - 2² = 220332231127 is a prime.

It is a super-2 number, since 2×220332231131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220332231097 and 220332231106.

It is not an unprimeable number, because it can be changed into a prime (220332231151) 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, 1551635360 + ... + 1551635501.

It is an arithmetic number, because the mean of its divisors is an integer number (55858875516).

Almost surely, 2^220332231131 is an apocalyptic number.

220332231131 is a deficient number, since it is larger than the sum of its proper divisors (3103270933).

220332231131 is an equidigital number, since it uses as much as digits as its factorization.

220332231131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103270932.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 220332231131 its reverse (131132233022), we get a palindrome (351464464153).

The spelling of 220332231131 in words is "two hundred twenty billion, three hundred thirty-two million, two hundred thirty-one thousand, one hundred thirty-one".