2170522123 has 16 divisors (see below), whose sum is σ = 2730942720. Its totient is φ = 1675792800.

The previous prime is 2170522117. The next prime is 2170522201. The reversal of 2170522123 is 3212250712.

It is not a de Polignac number, because 2170522123 - 2⁹ = 2170521611 is a prime.

It is a super-2 number, since 2×2170522123² = 9422332572864854258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2170520123) 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, 120913 + ... + 137698.

It is an arithmetic number, because the mean of its divisors is an integer number (170683920).

Almost surely, 2^2170522123 is an apocalyptic number.

2170522123 is a deficient number, since it is larger than the sum of its proper divisors (560420597).

2170522123 is a wasteful number, since it uses less digits than its factorization.

2170522123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258738.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2170522123 is about 46588.8626497793. The cubic root of 2170522123 is about 1294.7564173676.

Adding to 2170522123 its reverse (3212250712), we get a palindrome (5382772835).

The spelling of 2170522123 in words is "two billion, one hundred seventy million, five hundred twenty-two thousand, one hundred twenty-three".