20130037322257 has 4 divisors (see below), whose sum is σ = 20558335988736. Its totient is φ = 19701738655780.

The previous prime is 20130037322149. The next prime is 20130037322287. The reversal of 20130037322257 is 75222373003102.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-20130037322257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20130037322287) 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, 214149333169 + ... + 214149333262.

It is an arithmetic number, because the mean of its divisors is an integer number (5139583997184).

Almost surely, 2^{20130037322257} is an apocalyptic number.

It is an amenable number.

20130037322257 is a deficient number, since it is larger than the sum of its proper divisors (428298666479).

20130037322257 is an equidigital number, since it uses as much as digits as its factorization.

20130037322257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428298666478.

The product of its (nonzero) digits is 105840, while the sum is 37.

The spelling of 20130037322257 in words is "twenty trillion, one hundred thirty billion, thirty-seven million, three hundred twenty-two thousand, two hundred fifty-seven".