10431221043 has 4 divisors (see below), whose sum is σ = 13908294728. Its totient is φ = 6954147360.

The previous prime is 10431220999. The next prime is 10431221051. The reversal of 10431221043 is 34012213401.

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

It is not a de Polignac number, because 10431221043 - 2⁶ = 10431220979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10431229043) 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, 1738536838 + ... + 1738536843.

It is an arithmetic number, because the mean of its divisors is an integer number (3477073682).

Almost surely, 2^10431221043 is an apocalyptic number.

10431221043 is a deficient number, since it is larger than the sum of its proper divisors (3477073685).

10431221043 is an equidigital number, since it uses as much as digits as its factorization.

10431221043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477073684.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 10431221043 its reverse (34012213401), we get a palindrome (44443434444).

The spelling of 10431221043 in words is "ten billion, four hundred thirty-one million, two hundred twenty-one thousand, forty-three".