142204543623 has 32 divisors (see below), whose sum is σ = 215850640320. Its totient is φ = 92474104320.

The previous prime is 142204543609. The next prime is 142204543697. The reversal of 142204543623 is 326345402241.

142204543623 is a `hidden beast` number, since 1 + 4 + 2 + 20 + 4 + 5 + 4 + 3 + 623 = 666.

It is not a de Polignac number, because 142204543623 - 2¹⁷ = 142204412551 is a prime.

It is a super-2 number, since 2×142204543623² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142204543123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10240561 + ... + 10254437.

It is an arithmetic number, because the mean of its divisors is an integer number (6745332510).

Almost surely, 2^142204543623 is an apocalyptic number.

142204543623 is a deficient number, since it is larger than the sum of its proper divisors (73646096697).

142204543623 is a wasteful number, since it uses less digits than its factorization.

142204543623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23184 (or 23178 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 142204543623 its reverse (326345402241), we get a palindrome (468549945864).

The spelling of 142204543623 in words is "one hundred forty-two billion, two hundred four million, five hundred forty-three thousand, six hundred twenty-three".