1031300221431 has 4 divisors (see below), whose sum is σ = 1375066961912. Its totient is φ = 687533480952.

The previous prime is 1031300221373. The next prime is 1031300221439. The reversal of 1031300221431 is 1341220031301.

1031300221431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1031300221431 - 2⁹ = 1031300220919 is a prime.

It is a super-2 number, since 2×1031300221431² (a number of 25 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 = 1031300221398 and 1031300221407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031300221439) 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, 171883370236 + ... + 171883370241.

It is an arithmetic number, because the mean of its divisors is an integer number (343766740478).

Almost surely, 2^{1031300221431} is an apocalyptic number.

1031300221431 is a deficient number, since it is larger than the sum of its proper divisors (343766740481).

1031300221431 is an equidigital number, since it uses as much as digits as its factorization.

1031300221431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343766740480.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1031300221431 its reverse (1341220031301), we get a palindrome (2372520252732).

The spelling of 1031300221431 in words is "one trillion, thirty-one billion, three hundred million, two hundred twenty-one thousand, four hundred thirty-one".