106906421623 has 2 divisors, whose sum is σ = 106906421624. Its totient is φ = 106906421622.

The previous prime is 106906421621. The next prime is 106906421689. The reversal of 106906421623 is 326124609601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 106906421623 - 2¹ = 106906421621 is a prime.

It is a super-2 number, since 2×106906421623² (a number of 23 digits) contains 22 as substring.

Together with 106906421621, 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 (106906421621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53453210811 + 53453210812.

It is an arithmetic number, because the mean of its divisors is an integer number (53453210812).

Almost surely, 2^106906421623 is an apocalyptic number.

106906421623 is a deficient number, since it is larger than the sum of its proper divisors (1).

106906421623 is an equidigital number, since it uses as much as digits as its factorization.

106906421623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

It can be divided in two parts, 106906 and 421623, that added together give a square (528529 = 727²).

The spelling of 106906421623 in words is "one hundred six billion, nine hundred six million, four hundred twenty-one thousand, six hundred twenty-three".