205442002223131 has 16 divisors (see below), whose sum is σ = 208224434847744. Its totient is φ = 202678321310784.

The previous prime is 205442002223123. The next prime is 205442002223137. The reversal of 205442002223131 is 131322200244502.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 205442002223131 - 2³ = 205442002223123 is a prime.

It is a super-2 number, since 2×205442002223131² (a number of 29 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 = 205442002223093 and 205442002223102.

It is not an unprimeable number, because it can be changed into a prime (205442002223137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359846806 + ... + 360417268.

It is an arithmetic number, because the mean of its divisors is an integer number (13014027177984).

Almost surely, 2^{205442002223131} is an apocalyptic number.

205442002223131 is a deficient number, since it is larger than the sum of its proper divisors (2782432624613).

205442002223131 is a wasteful number, since it uses less digits than its factorization.

205442002223131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586890.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 205442002223131 its reverse (131322200244502), we get a palindrome (336764202467633).

The spelling of 205442002223131 in words is "two hundred five trillion, four hundred forty-two billion, two million, two hundred twenty-three thousand, one hundred thirty-one".