142938172211 has 4 divisors (see below), whose sum is σ = 147549081024. Its totient is φ = 138327263400.

The previous prime is 142938172189. The next prime is 142938172217. The reversal of 142938172211 is 112271839241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112271839241 = 179 ⋅627216979.

It is a cyclic number.

It is not a de Polignac number, because 142938172211 - 2⁶ = 142938172147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142938172217) 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, 2305454360 + ... + 2305454421.

It is an arithmetic number, because the mean of its divisors is an integer number (36887270256).

Almost surely, 2^142938172211 is an apocalyptic number.

142938172211 is a deficient number, since it is larger than the sum of its proper divisors (4610908813).

142938172211 is an equidigital number, since it uses as much as digits as its factorization.

142938172211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610908812.

The product of its digits is 48384, while the sum is 41.

The spelling of 142938172211 in words is "one hundred forty-two billion, nine hundred thirty-eight million, one hundred seventy-two thousand, two hundred eleven".