20142133233242 has 4 divisors (see below), whose sum is σ = 30213199849866. Its totient is φ = 10071066616620.

The previous prime is 20142133233217. The next prime is 20142133233251. The reversal of 20142133233242 is 24233233124102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19964444849281 + 177688383961 = 4468159^2 + 421531^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20142133233199 and 20142133233208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5035533308309 + ... + 5035533308312.

Almost surely, 2^{20142133233242} is an apocalyptic number.

20142133233242 is a deficient number, since it is larger than the sum of its proper divisors (10071066616624).

20142133233242 is a wasteful number, since it uses less digits than its factorization.

20142133233242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10071066616623.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 20142133233242 its reverse (24233233124102), we get a palindrome (44375366357344).

The spelling of 20142133233242 in words is "twenty trillion, one hundred forty-two billion, one hundred thirty-three million, two hundred thirty-three thousand, two hundred forty-two".