105020660631 has 8 divisors (see below), whose sum is σ = 141471130864. Its totient is φ = 69291982080.

The previous prime is 105020660609. The next prime is 105020660653. The reversal of 105020660631 is 136066020501.

It is an interprime number because it is at equal distance from previous prime (105020660609) and next prime (105020660653).

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

It is not a de Polignac number, because 105020660631 - 2⁵ = 105020660599 is a prime.

It is a super-2 number, since 2×105020660631² (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 (105020660131) 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, 180447580 + ... + 180448161.

It is an arithmetic number, because the mean of its divisors is an integer number (17683891358).

Almost surely, 2^105020660631 is an apocalyptic number.

105020660631 is a deficient number, since it is larger than the sum of its proper divisors (36450470233).

105020660631 is an equidigital number, since it uses as much as digits as its factorization.

105020660631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360895841.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 105020660631 in words is "one hundred five billion, twenty million, six hundred sixty thousand, six hundred thirty-one".