2031127213 has 2 divisors, whose sum is σ = 2031127214. Its totient is φ = 2031127212.

The previous prime is 2031127211. The next prime is 2031127237. The reversal of 2031127213 is 3127211302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1548973449 + 482153764 = 39357^2 + 21958^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031127213 - 2¹ = 2031127211 is a prime.

Together with 2031127211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031127211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015563606 + 1015563607.

It is an arithmetic number, because the mean of its divisors is an integer number (1015563607).

Almost surely, 2^2031127213 is an apocalyptic number.

It is an amenable number.

2031127213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031127213 is an equidigital number, since it uses as much as digits as its factorization.

2031127213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 2031127213 is about 45068.0287232535. The cubic root of 2031127213 is about 1266.4237357372.

Adding to 2031127213 its reverse (3127211302), we get a palindrome (5158338515).

It can be divided in two parts, 20311 and 27213, that added together give a square (47524 = 218²).

The spelling of 2031127213 in words is "two billion, thirty-one million, one hundred twenty-seven thousand, two hundred thirteen".