101122643 has 2 divisors, whose sum is σ = 101122644. Its totient is φ = 101122642.

The previous prime is 101122633. The next prime is 101122657. The reversal of 101122643 is 346221101.

It is a weak prime.

It is an emirp because it is prime and its reverse (346221101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101122643 - 2¹⁰ = 101121619 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (101122603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50561321 + 50561322.

It is an arithmetic number, because the mean of its divisors is an integer number (50561322).

Almost surely, 2^101122643 is an apocalyptic number.

101122643 is a deficient number, since it is larger than the sum of its proper divisors (1).

101122643 is an equidigital number, since it uses as much as digits as its factorization.

101122643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 101122643 is about 10055.9754872414. The cubic root of 101122643 is about 465.8893727583.

Adding to 101122643 its reverse (346221101), we get a palindrome (447343744).

The spelling of 101122643 in words is "one hundred one million, one hundred twenty-two thousand, six hundred forty-three".