2142126177109 has 16 divisors (see below), whose sum is σ = 2157099909120. Its totient is φ = 2127195198000.

The previous prime is 2142126177101. The next prime is 2142126177143. The reversal of 2142126177109 is 9017716212412.

It is a cyclic number.

It is not a de Polignac number, because 2142126177109 - 2³ = 2142126177101 is a prime.

It is a super-3 number, since 3×2142126177109³ (a number of 38 digits) contains 333 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 (2142126177101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311759944 + ... + 311766814.

It is an arithmetic number, because the mean of its divisors is an integer number (134818744320).

Almost surely, 2^{2142126177109} is an apocalyptic number.

It is an amenable number.

2142126177109 is a deficient number, since it is larger than the sum of its proper divisors (14973732011).

2142126177109 is a wasteful number, since it uses less digits than its factorization.

2142126177109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9672.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 2142126177109 in words is "two trillion, one hundred forty-two billion, one hundred twenty-six million, one hundred seventy-seven thousand, one hundred nine".