1442130123 has 16 divisors (see below), whose sum is σ = 2242380800. Its totient is φ = 824073768.

The previous prime is 1442130113. The next prime is 1442130139. The reversal of 1442130123 is 3210312441.

It is not a de Polignac number, because 1442130123 - 2⁸ = 1442129867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442130123.

It is not an unprimeable number, because it can be changed into a prime (1442130103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699715 + ... + 701772.

It is an arithmetic number, because the mean of its divisors is an integer number (140148800).

Almost surely, 2^1442130123 is an apocalyptic number.

1442130123 is a deficient number, since it is larger than the sum of its proper divisors (800250677).

1442130123 is an equidigital number, since it uses as much as digits as its factorization.

1442130123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401511 (or 1401497 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1442130123 is about 37975.3883851107. The cubic root of 1442130123 is about 1129.7997721301.

Adding to 1442130123 its reverse (3210312441), we get a palindrome (4652442564).

It can be divided in two parts, 14421 and 30123, that added together give a palindrome (44544).

The spelling of 1442130123 in words is "one billion, four hundred forty-two million, one hundred thirty thousand, one hundred twenty-three".