142363351644221 has 8 divisors (see below), whose sum is σ = 142519562811864. Its totient is φ = 142207221948480.

The previous prime is 142363351644131. The next prime is 142363351644257. The reversal of 142363351644221 is 122446153363241.

It can be written as a sum of positive squares in 4 ways, for example, as 98115245438596 + 44248106205625 = 9905314^2 + 6651925^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142363351644221 - 2¹⁴ = 142363351627837 is a prime.

It is a super-2 number, since 2×142363351644221² (a number of 29 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 (142363351614221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16870946 + ... + 23861171.

It is an arithmetic number, because the mean of its divisors is an integer number (17814945351483).

Almost surely, 2^{142363351644221} is an apocalyptic number.

It is an amenable number.

142363351644221 is a deficient number, since it is larger than the sum of its proper divisors (156211167643).

142363351644221 is a wasteful number, since it uses less digits than its factorization.

142363351644221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40735951.

The product of its digits is 2488320, while the sum is 47.

The spelling of 142363351644221 in words is "one hundred forty-two trillion, three hundred sixty-three billion, three hundred fifty-one million, six hundred forty-four thousand, two hundred twenty-one".