2100070319081 has 4 divisors (see below), whose sum is σ = 2400080364672. Its totient is φ = 1800060273492.

The previous prime is 2100070319041. The next prime is 2100070319161. The reversal of 2100070319081 is 1809130700012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2100070319081 - 2¹⁴ = 2100070302697 is a prime.

It is a super-2 number, since 2×2100070319081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100070319021) 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 3 ways as a sum of consecutive naturals, for example, 150005022785 + ... + 150005022798.

It is an arithmetic number, because the mean of its divisors is an integer number (600020091168).

Almost surely, 2^{2100070319081} is an apocalyptic number.

It is an amenable number.

2100070319081 is a deficient number, since it is larger than the sum of its proper divisors (300010045591).

2100070319081 is an equidigital number, since it uses as much as digits as its factorization.

2100070319081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300010045590.

The product of its (nonzero) digits is 3024, while the sum is 32.

The spelling of 2100070319081 in words is "two trillion, one hundred billion, seventy million, three hundred nineteen thousand, eighty-one".