1420123302443 has 4 divisors (see below), whose sum is σ = 1420131154848. Its totient is φ = 1420115450040.

The previous prime is 1420123302391. The next prime is 1420123302487. The reversal of 1420123302443 is 3442033210241.

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 1420123302443 - 2³⁰ = 1419049560619 is a prime.

It is a super-2 number, since 2×1420123302443² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420123302043) 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, 3648371 + ... + 4018812.

It is an arithmetic number, because the mean of its divisors is an integer number (355032788712).

Almost surely, 2^{1420123302443} is an apocalyptic number.

1420123302443 is a deficient number, since it is larger than the sum of its proper divisors (7852405).

1420123302443 is an equidigital number, since it uses as much as digits as its factorization.

1420123302443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7852404.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1420123302443 its reverse (3442033210241), we get a palindrome (4862156512684).

The spelling of 1420123302443 in words is "one trillion, four hundred twenty billion, one hundred twenty-three million, three hundred two thousand, four hundred forty-three".