31012330001 has 8 divisors (see below), whose sum is σ = 31300770600. Its totient is φ = 30723960960.

The previous prime is 31012329941. The next prime is 31012330021. The reversal of 31012330001 is 10003321013.

It can be written as a sum of positive squares in 4 ways, for example, as 1600080001 + 29412250000 = 40001^2 + 171500^2 .

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 31012330001 - 2²⁶ = 30945221137 is a prime.

It is a super-2 number, since 2×31012330001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31012330021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300655 + ... + 1324283.

It is an arithmetic number, because the mean of its divisors is an integer number (3912596325).

Almost surely, 2^31012330001 is an apocalyptic number.

It is an amenable number.

31012330001 is a deficient number, since it is larger than the sum of its proper divisors (288440599).

31012330001 is a wasteful number, since it uses less digits than its factorization.

31012330001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35779.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 31012330001 its reverse (10003321013), we get a palindrome (41015651014).

The spelling of 31012330001 in words is "thirty-one billion, twelve million, three hundred thirty thousand, one".