1420433431 has 2 divisors, whose sum is σ = 1420433432. Its totient is φ = 1420433430.

The previous prime is 1420433429. The next prime is 1420433447. The reversal of 1420433431 is 1343340241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1420433431 - 2¹ = 1420433429 is a prime.

It is a super-2 number, since 2×1420433431² = 4035262263804863522, which contains 22 as substring.

Together with 1420433429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1420433396 and 1420433405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420433411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710216715 + 710216716.

It is an arithmetic number, because the mean of its divisors is an integer number (710216716).

Almost surely, 2^1420433431 is an apocalyptic number.

1420433431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420433431 is an equidigital number, since it uses as much as digits as its factorization.

1420433431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1420433431 is about 37688.6379562860. The cubic root of 1420433431 is about 1124.1052127189.

Adding to 1420433431 its reverse (1343340241), we get a palindrome (2763773672).

It can be divided in two parts, 1420433 and 431, that added together give a square (1420864 = 1192²).

The spelling of 1420433431 in words is "one billion, four hundred twenty million, four hundred thirty-three thousand, four hundred thirty-one".