10731121 has 2 divisors, whose sum is σ = 10731122. Its totient is φ = 10731120.

The previous prime is 10731113. The next prime is 10731139. The reversal of 10731121 is 12113701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8294400 + 2436721 = 2880^2 + 1561^2 .

It is a cyclic number.

It is not a de Polignac number, because 10731121 - 2³ = 10731113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10731095 and 10731104.

It is not a weakly prime, because it can be changed into another prime (10731101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5365560 + 5365561.

It is an arithmetic number, because the mean of its divisors is an integer number (5365561).

Almost surely, 2^10731121 is an apocalyptic number.

It is an amenable number.

10731121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10731121 is an equidigital number, since it uses as much as digits as its factorization.

10731121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 10731121 is about 3275.8389765066. The cubic root of 10731121 is about 220.5709755182.

Adding to 10731121 its reverse (12113701), we get a palindrome (22844822).

The spelling of 10731121 in words is "ten million, seven hundred thirty-one thousand, one hundred twenty-one".