101230221243 has 4 divisors (see below), whose sum is σ = 134973628328. Its totient is φ = 67486814160.

The previous prime is 101230221233. The next prime is 101230221263. The reversal of 101230221243 is 342122032101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342122032101 = 3 ⋅114040677367.

It is not a de Polignac number, because 101230221243 - 2¹⁰ = 101230220219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101230221233) 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, 16871703538 + ... + 16871703543.

It is an arithmetic number, because the mean of its divisors is an integer number (33743407082).

Almost surely, 2^101230221243 is an apocalyptic number.

101230221243 is a deficient number, since it is larger than the sum of its proper divisors (33743407085).

101230221243 is an equidigital number, since it uses as much as digits as its factorization.

101230221243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33743407084.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 101230221243 its reverse (342122032101), we get a palindrome (443352253344).

The spelling of 101230221243 in words is "one hundred one billion, two hundred thirty million, two hundred twenty-one thousand, two hundred forty-three".