142552421111 has 4 divisors (see below), whose sum is σ = 142656247992. Its totient is φ = 142448594232.

The previous prime is 142552421059. The next prime is 142552421177. The reversal of 142552421111 is 111124255241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111124255241 = 40771 ⋅2725571.

It is a cyclic number.

It is not a de Polignac number, because 142552421111 - 2¹⁸ = 142552158967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142552421611) 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, 51911381 + ... + 51914126.

It is an arithmetic number, because the mean of its divisors is an integer number (35664061998).

Almost surely, 2^142552421111 is an apocalyptic number.

142552421111 is a deficient number, since it is larger than the sum of its proper divisors (103826881).

142552421111 is a wasteful number, since it uses less digits than its factorization.

142552421111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103826880.

The product of its digits is 3200, while the sum is 29.

Adding to 142552421111 its reverse (111124255241), we get a palindrome (253676676352).

The spelling of 142552421111 in words is "one hundred forty-two billion, five hundred fifty-two million, four hundred twenty-one thousand, one hundred eleven".