142331522405420 has 48 divisors (see below), whose sum is σ = 314630737344000. Its totient is φ = 53935613887680.

The previous prime is 142331522405399. The next prime is 142331522405431. The reversal of 142331522405420 is 24504225133241.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37042925 + ... + 40704315.

It is an arithmetic number, because the mean of its divisors is an integer number (6554807028000).

Almost surely, 2^{142331522405420} is an apocalyptic number.

142331522405420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142331522405420 is an abundant number, since it is smaller than the sum of its proper divisors (172299214938580).

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

142331522405420 is a wasteful number, since it uses less digits than its factorization.

142331522405420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763718 (or 3763716 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 142331522405420 its reverse (24504225133241), we get a palindrome (166835747538661).

The spelling of 142331522405420 in words is "one hundred forty-two trillion, three hundred thirty-one billion, five hundred twenty-two million, four hundred five thousand, four hundred twenty".