1423120142 has 4 divisors (see below), whose sum is σ = 2134680216. Its totient is φ = 711560070.

The previous prime is 1423120081. The next prime is 1423120151. The reversal of 1423120142 is 2410213241.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×1423120142³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355780034 + ... + 355780037.

It is an arithmetic number, because the mean of its divisors is an integer number (533670054).

Almost surely, 2^1423120142 is an apocalyptic number.

1423120142 is a deficient number, since it is larger than the sum of its proper divisors (711560074).

1423120142 is an equidigital number, since it uses as much as digits as its factorization.

1423120142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711560073.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1423120142 is about 37724.2646316664. The cubic root of 1423120142 is about 1124.8135044272.

Adding to 1423120142 its reverse (2410213241), we get a palindrome (3833333383).

The spelling of 1423120142 in words is "one billion, four hundred twenty-three million, one hundred twenty thousand, one hundred forty-two".