106331981781 has 8 divisors (see below), whose sum is σ = 141786892800. Its totient is φ = 70882529312.

The previous prime is 106331981779. The next prime is 106331981783. The reversal of 106331981781 is 187189133601.

It is an interprime number because it is at equal distance from previous prime (106331981779) and next prime (106331981783).

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 106331981781 - 2¹ = 106331981779 is a prime.

It is a super-2 number, since 2×106331981781² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106331981781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106331981783) 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, 1318965 + ... + 1397258.

It is an arithmetic number, because the mean of its divisors is an integer number (17723361600).

Almost surely, 2^106331981781 is an apocalyptic number.

It is an amenable number.

106331981781 is a deficient number, since it is larger than the sum of its proper divisors (35454911019).

106331981781 is a wasteful number, since it uses less digits than its factorization.

106331981781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729275.

The product of its (nonzero) digits is 217728, while the sum is 48.

The spelling of 106331981781 in words is "one hundred six billion, three hundred thirty-one million, nine hundred eighty-one thousand, seven hundred eighty-one".