142340401431 has 6 divisors (see below), whose sum is σ = 205602802080. Its totient is φ = 94893600948.

The previous prime is 142340401393. The next prime is 142340401433. The reversal of 142340401431 is 134104043241.

142340401431 is a `hidden beast` number, since 142 + 340 + 40 + 143 + 1 = 666.

It is not a de Polignac number, because 142340401431 - 2⁹ = 142340400919 is a prime.

It is a super-2 number, since 2×142340401431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142340401395 and 142340401404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142340401433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7907800071 + ... + 7907800088.

It is an arithmetic number, because the mean of its divisors is an integer number (34267133680).

Almost surely, 2^142340401431 is an apocalyptic number.

142340401431 is a deficient number, since it is larger than the sum of its proper divisors (63262400649).

142340401431 is a wasteful number, since it uses less digits than its factorization.

142340401431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15815600165 (or 15815600162 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 142340401431 its reverse (134104043241), we get a palindrome (276444444672).

The spelling of 142340401431 in words is "one hundred forty-two billion, three hundred forty million, four hundred one thousand, four hundred thirty-one".