142002004031 has 4 divisors (see below), whose sum is σ = 143329125672. Its totient is φ = 140674882392.

The previous prime is 142002004019. The next prime is 142002004043. The reversal of 142002004031 is 130400200241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130400200241 = 29 ⋅4496558629.

It is an interprime number because it is at equal distance from previous prime (142002004019) and next prime (142002004043).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142002004031 is a prime.

It is a super-2 number, since 2×142002004031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142002004051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663560660 + ... + 663560873.

It is an arithmetic number, because the mean of its divisors is an integer number (35832281418).

Almost surely, 2^142002004031 is an apocalyptic number.

142002004031 is a deficient number, since it is larger than the sum of its proper divisors (1327121641).

142002004031 is a wasteful number, since it uses less digits than its factorization.

142002004031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327121640.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 142002004031 its reverse (130400200241), we get a palindrome (272402204272).

The spelling of 142002004031 in words is "one hundred forty-two billion, two million, four thousand, thirty-one".