142001143431 has 24 divisors (see below), whose sum is σ = 222195783024. Its totient is φ = 80425416960.

The previous prime is 142001143409. The next prime is 142001143477. The reversal of 142001143431 is 134341100241.

It is not a de Polignac number, because 142001143431 - 2⁵ = 142001143399 is a prime.

It is a super-2 number, since 2×142001143431² (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 (142001143231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4257700 + ... + 4290921.

It is an arithmetic number, because the mean of its divisors is an integer number (9258157626).

Almost surely, 2^142001143431 is an apocalyptic number.

142001143431 is a deficient number, since it is larger than the sum of its proper divisors (80194639593).

142001143431 is a wasteful number, since it uses less digits than its factorization.

142001143431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8548751 (or 8548744 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 142001143431 its reverse (134341100241), we get a palindrome (276342243672).

The spelling of 142001143431 in words is "one hundred forty-two billion, one million, one hundred forty-three thousand, four hundred thirty-one".