2106610331 has 16 divisors (see below), whose sum is σ = 2437801920. Its totient is φ = 1783034880.

The previous prime is 2106610327. The next prime is 2106610349. The reversal of 2106610331 is 1330166012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2106610331 - 2² = 2106610327 is a prime.

It is a super-2 number, since 2×2106610331² = 8875614173351859122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2106610297 and 2106610306.

It is not an unprimeable number, because it can be changed into a prime (2106610391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606941 + ... + 610401.

It is an arithmetic number, because the mean of its divisors is an integer number (152362620).

Almost surely, 2^2106610331 is an apocalyptic number.

2106610331 is a deficient number, since it is larger than the sum of its proper divisors (331191589).

2106610331 is an equidigital number, since it uses as much as digits as its factorization.

2106610331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4534.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2106610331 is about 45897.8249048906. The cubic root of 2106610331 is about 1281.9214166734.

Adding to 2106610331 its reverse (1330166012), we get a palindrome (3436776343).

The spelling of 2106610331 in words is "two billion, one hundred six million, six hundred ten thousand, three hundred thirty-one".