142440233052 has 96 divisors (see below), whose sum is σ = 361952980480. Its totient is φ = 43336062720.

The previous prime is 142440232993. The next prime is 142440233077. The reversal of 142440233052 is 250332044241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11096574 + ... + 11109402.

Almost surely, 2^142440233052 is an apocalyptic number.

142440233052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142440233052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180976490240).

142440233052 is an abundant number, since it is smaller than the sum of its proper divisors (219512747428).

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

142440233052 is a wasteful number, since it uses less digits than its factorization.

142440233052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13643 (or 13641 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 142440233052 its reverse (250332044241), we get a palindrome (392772277293).

The spelling of 142440233052 in words is "one hundred forty-two billion, four hundred forty million, two hundred thirty-three thousand, fifty-two".