442133120501231 has 4 divisors (see below), whose sum is σ = 445614483654912. Its totient is φ = 438651757347552.

The previous prime is 442133120501209. The next prime is 442133120501239. The reversal of 442133120501231 is 132105021331244.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442133120501231 is a prime.

It is a super-2 number, since 2×442133120501231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442133120501239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1740681576650 + ... + 1740681576903.

It is an arithmetic number, because the mean of its divisors is an integer number (111403620913728).

Almost surely, 2^{442133120501231} is an apocalyptic number.

442133120501231 is a deficient number, since it is larger than the sum of its proper divisors (3481363153681).

442133120501231 is a wasteful number, since it uses less digits than its factorization.

442133120501231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481363153680.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 442133120501231 its reverse (132105021331244), we get a palindrome (574238141832475).

The spelling of 442133120501231 in words is "four hundred forty-two trillion, one hundred thirty-three billion, one hundred twenty million, five hundred one thousand, two hundred thirty-one".