1420723343 has 12 divisors (see below), whose sum is σ = 1539479448. Its totient is φ = 1310531040.

The previous prime is 1420723321. The next prime is 1420723391. The reversal of 1420723343 is 3433270241.

It is not a de Polignac number, because 1420723343 - 2¹⁰ = 1420722319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420723313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 461696 + ... + 464762.

It is an arithmetic number, because the mean of its divisors is an integer number (128289954).

Almost surely, 2^1420723343 is an apocalyptic number.

1420723343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1420723343 is a deficient number, since it is larger than the sum of its proper divisors (118756105).

1420723343 is a wasteful number, since it uses less digits than its factorization.

1420723343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5834 (or 5821 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 1420723343 is about 37692.4839059460. The cubic root of 1420723343 is about 1124.1816845465.

Adding to 1420723343 its reverse (3433270241), we get a palindrome (4853993584).

The spelling of 1420723343 in words is "one billion, four hundred twenty million, seven hundred twenty-three thousand, three hundred forty-three".