10420143431 has 4 divisors (see below), whose sum is σ = 10662472392. Its totient is φ = 10177814472.

The previous prime is 10420143427. The next prime is 10420143499. The reversal of 10420143431 is 13434102401.

10420143431 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 a cyclic number.

It is not a de Polignac number, because 10420143431 - 2² = 10420143427 is a prime.

It is a super-2 number, since 2×10420143431² (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 = 10420143397 and 10420143406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10420143401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121164416 + ... + 121164501.

It is an arithmetic number, because the mean of its divisors is an integer number (2665618098).

Almost surely, 2^10420143431 is an apocalyptic number.

10420143431 is a deficient number, since it is larger than the sum of its proper divisors (242328961).

10420143431 is an equidigital number, since it uses as much as digits as its factorization.

10420143431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242328960.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 10420143431 its reverse (13434102401), we get a palindrome (23854245832).

The spelling of 10420143431 in words is "ten billion, four hundred twenty million, one hundred forty-three thousand, four hundred thirty-one".