10203221431 has 4 divisors (see below), whose sum is σ = 10988084632. Its totient is φ = 9418358232.

The previous prime is 10203221401. The next prime is 10203221437. The reversal of 10203221431 is 13412230201.

It is a happy number.

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 10203221431 - 2¹⁹ = 10202697143 is a prime.

It is a super-2 number, since 2×10203221431² (a number of 21 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 = 10203221399 and 10203221408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203221437) 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, 392431581 + ... + 392431606.

It is an arithmetic number, because the mean of its divisors is an integer number (2747021158).

Almost surely, 2^10203221431 is an apocalyptic number.

10203221431 is a deficient number, since it is larger than the sum of its proper divisors (784863201).

10203221431 is an equidigital number, since it uses as much as digits as its factorization.

10203221431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784863200.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10203221431 its reverse (13412230201), we get a palindrome (23615451632).

The spelling of 10203221431 in words is "ten billion, two hundred three million, two hundred twenty-one thousand, four hundred thirty-one".