106421156503 has 8 divisors (see below), whose sum is σ = 108187738736. Its totient is φ = 104655283200.

The previous prime is 106421156489. The next prime is 106421156539. The reversal of 106421156503 is 305651124601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 106421156503 - 2³³ = 97831221911 is a prime.

It is a super-2 number, since 2×106421156503² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106421156563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129868 + ... + 479278.

It is an arithmetic number, because the mean of its divisors is an integer number (13523467342).

Almost surely, 2^106421156503 is an apocalyptic number.

106421156503 is a deficient number, since it is larger than the sum of its proper divisors (1766582233).

106421156503 is an equidigital number, since it uses as much as digits as its factorization.

106421156503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354465.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 106421156503 in words is "one hundred six billion, four hundred twenty-one million, one hundred fifty-six thousand, five hundred three".