127237740251201 has 12 divisors (see below), whose sum is σ = 135163011116412. Its totient is φ = 119752787282688.

The previous prime is 127237740251189. The next prime is 127237740251203. The reversal of 127237740251201 is 102152047732721.

It can be written as a sum of positive squares in 6 ways, for example, as 55843098534976 + 71394641716225 = 7472824^2 + 8449535^2 .

It is not a de Polignac number, because 127237740251201 - 2⁶ = 127237740251137 is a prime.

It is a super-2 number, since 2×127237740251201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127237740251203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138299951 + ... + 139216923.

It is an arithmetic number, because the mean of its divisors is an integer number (11263584259701).

Almost surely, 2^{127237740251201} is an apocalyptic number.

It is an amenable number.

127237740251201 is a deficient number, since it is larger than the sum of its proper divisors (7925270865211).

127237740251201 is an equidigital number, since it uses as much as digits as its factorization.

127237740251201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397140 (or 1397123 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 44.

Adding to 127237740251201 its reverse (102152047732721), we get a palindrome (229389787983922).

The spelling of 127237740251201 in words is "one hundred twenty-seven trillion, two hundred thirty-seven billion, seven hundred forty million, two hundred fifty-one thousand, two hundred one".