106405622503 has 4 divisors (see below), whose sum is σ = 106561414728. Its totient is φ = 106249830280.

The previous prime is 106405622497. The next prime is 106405622509. The reversal of 106405622503 is 305226504601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305226504601 = 251 ⋅1216041851.

It is an interprime number because it is at equal distance from previous prime (106405622497) and next prime (106405622509).

It is a cyclic number.

It is not a de Polignac number, because 106405622503 - 2¹⁷ = 106405491431 is a prime.

It is a super-3 number, since 3×106405622503³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106405622509) 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 in 3 ways as a sum of consecutive naturals, for example, 77895088 + ... + 77896453.

It is an arithmetic number, because the mean of its divisors is an integer number (26640353682).

Almost surely, 2^106405622503 is an apocalyptic number.

106405622503 is a deficient number, since it is larger than the sum of its proper divisors (155792225).

106405622503 is an equidigital number, since it uses as much as digits as its factorization.

106405622503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155792224.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 106405622503 in words is "one hundred six billion, four hundred five million, six hundred twenty-two thousand, five hundred three".