142420424631 has 8 divisors (see below), whose sum is σ = 190005806064. Its totient is φ = 94890996480.

The previous prime is 142420424623. The next prime is 142420424639. The reversal of 142420424631 is 136424024241.

It is an interprime number because it is at equal distance from previous prime (142420424623) and next prime (142420424639).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142420424631 - 2³ = 142420424623 is a prime.

It is a super-2 number, since 2×142420424631² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142420424592 and 142420424601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142420424639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13982380 + ... + 13992561.

It is an arithmetic number, because the mean of its divisors is an integer number (23750725758).

Almost surely, 2^142420424631 is an apocalyptic number.

142420424631 is a deficient number, since it is larger than the sum of its proper divisors (47585381433).

142420424631 is a wasteful number, since it uses less digits than its factorization.

142420424631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27976641.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 142420424631 its reverse (136424024241), we get a palindrome (278844448872).

The spelling of 142420424631 in words is "one hundred forty-two billion, four hundred twenty million, four hundred twenty-four thousand, six hundred thirty-one".