142120134433344 has 56 divisors (see below), whose sum is σ = 376027436481088. Its totient is φ = 47373220984320.

The previous prime is 142120134433219. The next prime is 142120134433367. The reversal of 142120134433344 is 443334431021241.

It is a super-2 number, since 2×142120134433344² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66502734 + ... + 68606514.

It is an arithmetic number, because the mean of its divisors is an integer number (6714775651448).

Almost surely, 2^{142120134433344} is an apocalyptic number.

It is an amenable number.

142120134433344 is an abundant number, since it is smaller than the sum of its proper divisors (233907302047744).

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

142120134433344 is a wasteful number, since it uses less digits than its factorization.

142120134433344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455643 (or 2455633 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 39.

Adding to 142120134433344 its reverse (443334431021241), we get a palindrome (585454565454585).

The spelling of 142120134433344 in words is "one hundred forty-two trillion, one hundred twenty billion, one hundred thirty-four million, four hundred thirty-three thousand, three hundred forty-four".