142021544042231 has 16 divisors (see below), whose sum is σ = 166322951968320. Its totient is φ = 118725212497920.

The previous prime is 142021544042221. The next prime is 142021544042237. The reversal of 142021544042231 is 132240445120241.

It is not a de Polignac number, because 142021544042231 - 2¹⁰ = 142021544041207 is a prime.

It is a super-2 number, since 2×142021544042231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142021544042191 and 142021544042200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142021544042237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79211966 + ... + 80985051.

It is an arithmetic number, because the mean of its divisors is an integer number (10395184498020).

Almost surely, 2^{142021544042231} is an apocalyptic number.

142021544042231 is a deficient number, since it is larger than the sum of its proper divisors (24301407926089).

142021544042231 is a wasteful number, since it uses less digits than its factorization.

142021544042231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160200154.

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 142021544042231 its reverse (132240445120241), we get a palindrome (274261989162472).

The spelling of 142021544042231 in words is "one hundred forty-two trillion, twenty-one billion, five hundred forty-four million, forty-two thousand, two hundred thirty-one".