142443421044 has 12 divisors (see below), whose sum is σ = 332367982464. Its totient is φ = 47481140344.

The previous prime is 142443421027. The next prime is 142443421049. The reversal of 142443421044 is 440124344241.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 142443420996 and 142443421014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142443421049) 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, 5935142532 + ... + 5935142555.

It is an arithmetic number, because the mean of its divisors is an integer number (27697331872).

Almost surely, 2^142443421044 is an apocalyptic number.

It is an amenable number.

142443421044 is an abundant number, since it is smaller than the sum of its proper divisors (189924561420).

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

142443421044 is a wasteful number, since it uses less digits than its factorization.

142443421044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11870285094 (or 11870285092 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 142443421044 its reverse (440124344241), we get a palindrome (582567765285).

The spelling of 142443421044 in words is "one hundred forty-two billion, four hundred forty-three million, four hundred twenty-one thousand, forty-four".