220343121031 has 12 divisors (see below), whose sum is σ = 251279771400. Its totient is φ = 191602708880.

The previous prime is 220343120957. The next prime is 220343121043. The reversal of 220343121031 is 130121343022.

It is not a de Polignac number, because 220343121031 - 2¹⁷ = 220342989959 is a prime.

It is a super-2 number, since 2×220343121031² (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 = 220343120993 and 220343121011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220343122031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18927256 + ... + 18938893.

It is an arithmetic number, because the mean of its divisors is an integer number (20939980950).

Almost surely, 2^220343121031 is an apocalyptic number.

220343121031 is a deficient number, since it is larger than the sum of its proper divisors (30936650369).

220343121031 is a wasteful number, since it uses less digits than its factorization.

220343121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37866206 (or 37866183 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 220343121031 its reverse (130121343022), we get a palindrome (350464464053).

The spelling of 220343121031 in words is "two hundred twenty billion, three hundred forty-three million, one hundred twenty-one thousand, thirty-one".