31012301 has 6 divisors (see below), whose sum is σ = 32944170. Its totient is φ = 29187776.

The previous prime is 31012297. The next prime is 31012309. The reversal of 31012301 is 10321013.

It can be written as a sum of positive squares in 3 ways, for example, as 7295401 + 23716900 = 2701^2 + 4870^2 .

It is not a de Polignac number, because 31012301 - 2² = 31012297 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53366 + ... + 53943.

It is an arithmetic number, because the mean of its divisors is an integer number (5490695).

Almost surely, 2^31012301 is an apocalyptic number.

It is an amenable number.

31012301 is a deficient number, since it is larger than the sum of its proper divisors (1931869).

31012301 is a wasteful number, since it uses less digits than its factorization.

31012301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107343 (or 107326 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 31012301 is about 5568.8689156776. The cubic root of 31012301 is about 314.1796104148.

Adding to 31012301 its reverse (10321013), we get a palindrome (41333314).

It can be divided in two parts, 31012 and 301, that added together give a palindrome (31313).

The spelling of 31012301 in words is "thirty-one million, twelve thousand, three hundred one".