37130012321 has 4 divisors (see below), whose sum is σ = 37166026944. Its totient is φ = 37093997700.

The previous prime is 37130012317. The next prime is 37130012333. The reversal of 37130012321 is 12321003173.

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 37130012321 - 2² = 37130012317 is a prime.

It is a super-2 number, since 2×37130012321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37130012351) 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, 18005765 + ... + 18007826.

It is an arithmetic number, because the mean of its divisors is an integer number (9291506736).

Almost surely, 2^37130012321 is an apocalyptic number.

It is an amenable number.

37130012321 is a deficient number, since it is larger than the sum of its proper divisors (36014623).

37130012321 is a wasteful number, since it uses less digits than its factorization.

37130012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36014622.

The product of its (nonzero) digits is 756, while the sum is 23.

Adding to 37130012321 its reverse (12321003173), we get a palindrome (49451015494).

The spelling of 37130012321 in words is "thirty-seven billion, one hundred thirty million, twelve thousand, three hundred twenty-one".