142421342541356 has 6 divisors (see below), whose sum is σ = 249237349447380. Its totient is φ = 71210671270676.

The previous prime is 142421342541337. The next prime is 142421342541449. The reversal of 142421342541356 is 653145243124241.

It is a super-2 number, since 2×142421342541356² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142421342541356.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17802667817666 + ... + 17802667817673.

It is an arithmetic number, because the mean of its divisors is an integer number (41539558241230).

Almost surely, 2^{142421342541356} is an apocalyptic number.

It is an amenable number.

142421342541356 is a deficient number, since it is larger than the sum of its proper divisors (106816006906024).

142421342541356 is a wasteful number, since it uses less digits than its factorization.

142421342541356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35605335635343 (or 35605335635341 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 47.

Adding to 142421342541356 its reverse (653145243124241), we get a palindrome (795566585665597).

The spelling of 142421342541356 in words is "one hundred forty-two trillion, four hundred twenty-one billion, three hundred forty-two million, five hundred forty-one thousand, three hundred fifty-six".