37350312121 has 4 divisors (see below), whose sum is σ = 37539907812. Its totient is φ = 37160716432.

The previous prime is 37350312079. The next prime is 37350312127. The reversal of 37350312121 is 12121305373.

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 25510478400 + 11839833721 = 159720^2 + 108811^2 .

It is a cyclic number.

It is not a de Polignac number, because 37350312121 - 2⁷ = 37350311993 is a prime.

It is a super-2 number, since 2×37350312121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37350312121.

It is not an unprimeable number, because it can be changed into a prime (37350312127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94797550 + ... + 94797943.

It is an arithmetic number, because the mean of its divisors is an integer number (9384976953).

Almost surely, 2^37350312121 is an apocalyptic number.

It is an amenable number.

37350312121 is a deficient number, since it is larger than the sum of its proper divisors (189595691).

37350312121 is a wasteful number, since it uses less digits than its factorization.

37350312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189595690.

The product of its (nonzero) digits is 3780, while the sum is 28.

Adding to 37350312121 its reverse (12121305373), we get a palindrome (49471617494).

The spelling of 37350312121 in words is "thirty-seven billion, three hundred fifty million, three hundred twelve thousand, one hundred twenty-one".