142703813296621 has 4 divisors (see below), whose sum is σ = 142720576351452. Its totient is φ = 142687050241792.

The previous prime is 142703813296613. The next prime is 142703813296687. The reversal of 142703813296621 is 126692318307241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 76149446113225 + 66554367183396 = 8726365^2 + 8158086^2 .

It is a cyclic number.

It is not a de Polignac number, because 142703813296621 - 2³ = 142703813296613 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 (142703813296721) 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, 8381514646 + ... + 8381531671.

It is an arithmetic number, because the mean of its divisors is an integer number (35680144087863).

Almost surely, 2^{142703813296621} is an apocalyptic number.

It is an amenable number.

142703813296621 is a deficient number, since it is larger than the sum of its proper divisors (16763054831).

142703813296621 is an equidigital number, since it uses as much as digits as its factorization.

142703813296621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16763054830.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 142703813296621 in words is "one hundred forty-two trillion, seven hundred three billion, eight hundred thirteen million, two hundred ninety-six thousand, six hundred twenty-one".