142031869451 has 2 divisors, whose sum is σ = 142031869452. Its totient is φ = 142031869450.

The previous prime is 142031869409. The next prime is 142031869523. The reversal of 142031869451 is 154968130241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142031869451 - 2³⁰ = 140958127627 is a prime.

It is not a weakly prime, because it can be changed into another prime (142031869151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71015934725 + 71015934726.

It is an arithmetic number, because the mean of its divisors is an integer number (71015934726).

Almost surely, 2^142031869451 is an apocalyptic number.

142031869451 is a deficient number, since it is larger than the sum of its proper divisors (1).

142031869451 is an equidigital number, since it uses as much as digits as its factorization.

142031869451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 44.

Adding to 142031869451 its reverse (154968130241), we get a palindrome (296999999692).

The spelling of 142031869451 in words is "one hundred forty-two billion, thirty-one million, eight hundred sixty-nine thousand, four hundred fifty-one".