142431213044551 has 4 divisors (see below), whose sum is σ = 142466028793704. Its totient is φ = 142396397295400.

The previous prime is 142431213044401. The next prime is 142431213044563. The reversal of 142431213044551 is 155440312134241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142431213044551 - 2³⁹ = 141881457230663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142431213044581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17407868440 + ... + 17407876621.

It is an arithmetic number, because the mean of its divisors is an integer number (35616507198426).

Almost surely, 2^{142431213044551} is an apocalyptic number.

142431213044551 is a deficient number, since it is larger than the sum of its proper divisors (34815749153).

142431213044551 is an equidigital number, since it uses as much as digits as its factorization.

142431213044551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34815749152.

The product of its (nonzero) digits is 230400, while the sum is 40.

Adding to 142431213044551 its reverse (155440312134241), we get a palindrome (297871525178792).

The spelling of 142431213044551 in words is "one hundred forty-two trillion, four hundred thirty-one billion, two hundred thirteen million, forty-four thousand, five hundred fifty-one".