31053121 has 8 divisors (see below), whose sum is σ = 34053984. Its totient is φ = 28081920.

The previous prime is 31053097. The next prime is 31053131. The reversal of 31053121 is 12135013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31053121 - 2⁵ = 31053089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31053095 and 31053104.

It is not an unprimeable number, because it can be changed into a prime (31053131) 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 7 ways as a sum of consecutive naturals, for example, 5191 + ... + 9436.

It is an arithmetic number, because the mean of its divisors is an integer number (4256748).

Almost surely, 2^31053121 is an apocalyptic number.

It is an amenable number.

31053121 is a deficient number, since it is larger than the sum of its proper divisors (3000863).

31053121 is a wasteful number, since it uses less digits than its factorization.

31053121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14831.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 31053121 is about 5572.5327275845. The cubic root of 31053121 is about 314.3173964814.

Adding to 31053121 its reverse (12135013), we get a palindrome (43188134).

It can be divided in two parts, 3105 and 3121, that added together give a palindrome (6226).

The spelling of 31053121 in words is "thirty-one million, fifty-three thousand, one hundred twenty-one".