101123421103 has 2 divisors, whose sum is σ = 101123421104. Its totient is φ = 101123421102.

The previous prime is 101123421101. The next prime is 101123421143. The reversal of 101123421103 is 301124321101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101123421103 - 2¹ = 101123421101 is a prime.

Together with 101123421101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101123421101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50561710551 + 50561710552.

It is an arithmetic number, because the mean of its divisors is an integer number (50561710552).

Almost surely, 2^101123421103 is an apocalyptic number.

101123421103 is a deficient number, since it is larger than the sum of its proper divisors (1).

101123421103 is an equidigital number, since it uses as much as digits as its factorization.

101123421103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 101123421103 its reverse (301124321101), we get a palindrome (402247742204).

The spelling of 101123421103 in words is "one hundred one billion, one hundred twenty-three million, four hundred twenty-one thousand, one hundred three".