142260211305 has 20 divisors (see below), whose sum is σ = 255014601732. Its totient is φ = 75872112480.

The previous prime is 142260211231. The next prime is 142260211307. The reversal of 142260211305 is 503112062241.

142260211305 is a `hidden beast` number, since 1 + 4 + 22 + 602 + 1 + 1 + 30 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 110427942249 + 31832269056 = 332307^2 + 178416^2 .

It is not a de Polignac number, because 142260211305 - 2¹¹ = 142260209257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (142260211307) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 175629486 + ... + 175630295.

Almost surely, 2^142260211305 is an apocalyptic number.

142260211305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142260211305 is a deficient number, since it is larger than the sum of its proper divisors (112754390427).

142260211305 is an equidigital number, since it uses as much as digits as its factorization.

142260211305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351259798 (or 351259789 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 142260211305 its reverse (503112062241), we get a palindrome (645372273546).

The spelling of 142260211305 in words is "one hundred forty-two billion, two hundred sixty million, two hundred eleven thousand, three hundred five".