2031212893 has 4 divisors (see below), whose sum is σ = 2034527068. Its totient is φ = 2027898720.

The previous prime is 2031212881. The next prime is 2031212923. The reversal of 2031212893 is 3982121302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3982121302 = 2 ⋅1991060651.

It can be written as a sum of positive squares in 2 ways, for example, as 653466969 + 1377745924 = 25563^2 + 37118^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031212893 - 2⁵ = 2031212861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031216893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1656168 + ... + 1657393.

It is an arithmetic number, because the mean of its divisors is an integer number (508631767).

Almost surely, 2^2031212893 is an apocalyptic number.

It is an amenable number.

2031212893 is a deficient number, since it is larger than the sum of its proper divisors (3314175).

2031212893 is an equidigital number, since it uses as much as digits as its factorization.

2031212893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314174.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 2031212893 is about 45068.9792762161. The cubic root of 2031212893 is about 1266.4415428706.

The spelling of 2031212893 in words is "two billion, thirty-one million, two hundred twelve thousand, eight hundred ninety-three".