142312552220 has 24 divisors (see below), whose sum is σ = 298949393904. Its totient is φ = 56907300096.

The previous prime is 142312552211. The next prime is 142312552231. The reversal of 142312552220 is 22255213241.

It is a happy number.

It is a congruent number.

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, 1041602 + ... + 1170281.

It is an arithmetic number, because the mean of its divisors is an integer number (12456224746).

Almost surely, 2^142312552220 is an apocalyptic number.

142312552220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142312552220 is an abundant number, since it is smaller than the sum of its proper divisors (156636841684).

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

142312552220 is a wasteful number, since it uses less digits than its factorization.

142312552220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215109 (or 2215107 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 142312552220 its reverse (22255213241), we get a palindrome (164567765461).

The spelling of 142312552220 in words is "one hundred forty-two billion, three hundred twelve million, five hundred fifty-two thousand, two hundred twenty".