1423043020 has 48 divisors (see below), whose sum is σ = 3462113088. Its totient is φ = 481213440.

The previous prime is 1423043009. The next prime is 1423043023. The reversal of 1423043020 is 203403241.

It is not an unprimeable number, because it can be changed into a prime (1423043023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59401 + ... + 79840.

It is an arithmetic number, because the mean of its divisors is an integer number (72127356).

Almost surely, 2^1423043020 is an apocalyptic number.

1423043020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1423043020 is an abundant number, since it is smaller than the sum of its proper divisors (2039070068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1423043020 is a wasteful number, since it uses less digits than its factorization.

1423043020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139330 (or 139328 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1423043020 is about 37723.2424375212. The cubic root of 1423043020 is about 1124.7931853570.

Adding to 1423043020 its reverse (203403241), we get a palindrome (1626446261).

The spelling of 1423043020 in words is "one billion, four hundred twenty-three million, forty-three thousand, twenty".