221431413103433 has 4 divisors (see below), whose sum is σ = 238464598726788. Its totient is φ = 204398227480080.

The previous prime is 221431413103427. The next prime is 221431413103451. The reversal of 221431413103433 is 334301314134122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 131552917001104 + 89878496102329 = 11469652^2 + 9480427^2 .

It is a cyclic number.

It is not a de Polignac number, because 221431413103433 - 2⁸ = 221431413103177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221431413103393 and 221431413103402.

It is not an unprimeable number, because it can be changed into a prime (221431418103433) 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, 8516592811658 + ... + 8516592811683.

It is an arithmetic number, because the mean of its divisors is an integer number (59616149681697).

Almost surely, 2^{221431413103433} is an apocalyptic number.

It is an amenable number.

221431413103433 is a deficient number, since it is larger than the sum of its proper divisors (17033185623355).

221431413103433 is a wasteful number, since it uses less digits than its factorization.

221431413103433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17033185623354.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 221431413103433 its reverse (334301314134122), we get a palindrome (555732727237555).

The spelling of 221431413103433 in words is "two hundred twenty-one trillion, four hundred thirty-one billion, four hundred thirteen million, one hundred three thousand, four hundred thirty-three".