220213031331 has 4 divisors (see below), whose sum is σ = 293617375112. Its totient is φ = 146808687552.

The previous prime is 220213031321. The next prime is 220213031369. The reversal of 220213031331 is 133130312022.

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

It is not a de Polignac number, because 220213031331 - 2⁵ = 220213031299 is a prime.

It is a super-3 number, since 3×220213031331³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220213031298 and 220213031307.

It is not an unprimeable number, because it can be changed into a prime (220213031321) 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, 36702171886 + ... + 36702171891.

It is an arithmetic number, because the mean of its divisors is an integer number (73404343778).

Almost surely, 2^220213031331 is an apocalyptic number.

220213031331 is a deficient number, since it is larger than the sum of its proper divisors (73404343781).

220213031331 is an equidigital number, since it uses as much as digits as its factorization.

220213031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73404343780.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 220213031331 its reverse (133130312022), we get a palindrome (353343343353).

The spelling of 220213031331 in words is "two hundred twenty billion, two hundred thirteen million, thirty-one thousand, three hundred thirty-one".