5321221431 has 4 divisors (see below), whose sum is σ = 7094961912. Its totient is φ = 3547480952.

The previous prime is 5321221429. The next prime is 5321221439. The reversal of 5321221431 is 1341221235.

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 5321221431 - 2¹ = 5321221429 is a prime.

It is a super-2 number, since 2×5321221431² = 56630795035467375522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5321221439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886870236 + ... + 886870241.

It is an arithmetic number, because the mean of its divisors is an integer number (1773740478).

Almost surely, 2^5321221431 is an apocalyptic number.

5321221431 is a deficient number, since it is larger than the sum of its proper divisors (1773740481).

5321221431 is a wasteful number, since it uses less digits than its factorization.

5321221431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773740480.

The product of its digits is 1440, while the sum is 24.

The square root of 5321221431 is about 72946.7026739386. The cubic root of 5321221431 is about 1745.8373368562.

Adding to 5321221431 its reverse (1341221235), we get a palindrome (6662442666).

The spelling of 5321221431 in words is "five billion, three hundred twenty-one million, two hundred twenty-one thousand, four hundred thirty-one".