213107031037 has 4 divisors (see below), whose sum is σ = 213569302716. Its totient is φ = 212644759360.

The previous prime is 213107030987. The next prime is 213107031061. The reversal of 213107031037 is 730130701312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127869892921 + 85237138116 = 357589^2 + 291954^2 .

It is a cyclic number.

It is not a de Polignac number, because 213107031037 - 2²⁷ = 212972813309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213107030996 and 213107031014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213107031337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231135148 + ... + 231136069.

It is an arithmetic number, because the mean of its divisors is an integer number (53392325679).

Almost surely, 2^213107031037 is an apocalyptic number.

It is an amenable number.

213107031037 is a deficient number, since it is larger than the sum of its proper divisors (462271679).

213107031037 is an equidigital number, since it uses as much as digits as its factorization.

213107031037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462271678.

The product of its (nonzero) digits is 2646, while the sum is 28.

Adding to 213107031037 its reverse (730130701312), we get a palindrome (943237732349).

The spelling of 213107031037 in words is "two hundred thirteen billion, one hundred seven million, thirty-one thousand, thirty-seven".