142231261424 has 80 divisors (see below), whose sum is σ = 339966097920. Its totient is φ = 56295402240.

The previous prime is 142231261421. The next prime is 142231261451. The reversal of 142231261424 is 424162132241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142231261421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877262 + ... + 1026669.

It is an arithmetic number, because the mean of its divisors is an integer number (4249576224).

Almost surely, 2^142231261424 is an apocalyptic number.

142231261424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142231261424 is an abundant number, since it is smaller than the sum of its proper divisors (197734836496).

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

142231261424 is a wasteful number, since it uses less digits than its factorization.

142231261424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903998 (or 1903992 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

Adding to 142231261424 its reverse (424162132241), we get a palindrome (566393393665).

The spelling of 142231261424 in words is "one hundred forty-two billion, two hundred thirty-one million, two hundred sixty-one thousand, four hundred twenty-four".