142424421261511 has 4 divisors (see below), whose sum is σ = 142424451600112. Its totient is φ = 142424390922912.

The previous prime is 142424421261461. The next prime is 142424421261557. The reversal of 142424421261511 is 115162124424241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142424421261511 - 2²⁷ = 142424287043783 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 (142424421261581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6461250 + ... + 18071983.

It is an arithmetic number, because the mean of its divisors is an integer number (35606112900028).

Almost surely, 2^{142424421261511} is an apocalyptic number.

142424421261511 is a deficient number, since it is larger than the sum of its proper divisors (30338601).

142424421261511 is an equidigital number, since it uses as much as digits as its factorization.

142424421261511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30338600.

The product of its digits is 122880, while the sum is 40.

Adding to 142424421261511 its reverse (115162124424241), we get a palindrome (257586545685752).

The spelling of 142424421261511 in words is "one hundred forty-two trillion, four hundred twenty-four billion, four hundred twenty-one million, two hundred sixty-one thousand, five hundred eleven".