101821422343 has 4 divisors (see below), whose sum is σ = 101822383720. Its totient is φ = 101820460968.

The previous prime is 101821422331. The next prime is 101821422371. The reversal of 101821422343 is 343224128101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 343224128101 = 389027 ⋅882263.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101821422343 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 (101821422743) 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, 298905 + ... + 541282.

It is an arithmetic number, because the mean of its divisors is an integer number (25455595930).

Almost surely, 2^101821422343 is an apocalyptic number.

101821422343 is a deficient number, since it is larger than the sum of its proper divisors (961377).

101821422343 is an equidigital number, since it uses as much as digits as its factorization.

101821422343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961376.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 101821422343 in words is "one hundred one billion, eight hundred twenty-one million, four hundred twenty-two thousand, three hundred forty-three".