142120331233 has 4 divisors (see below), whose sum is σ = 147021032340. Its totient is φ = 137219630128.

The previous prime is 142120331219. The next prime is 142120331239. The reversal of 142120331233 is 332133021241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 64929155344 + 77191175889 = 254812^2 + 277833^2 .

It is a cyclic number.

It is not a de Polignac number, because 142120331233 - 2³³ = 133530396641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142120331198 and 142120331207.

It is not an unprimeable number, because it can be changed into a prime (142120331239) 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, 2450350510 + ... + 2450350567.

It is an arithmetic number, because the mean of its divisors is an integer number (36755258085).

Almost surely, 2^142120331233 is an apocalyptic number.

It is an amenable number.

142120331233 is a deficient number, since it is larger than the sum of its proper divisors (4900701107).

142120331233 is an equidigital number, since it uses as much as digits as its factorization.

142120331233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900701106.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 142120331233 its reverse (332133021241), we get a palindrome (474253352474).

The spelling of 142120331233 in words is "one hundred forty-two billion, one hundred twenty million, three hundred thirty-one thousand, two hundred thirty-three".