31130323001 has 4 divisors (see below), whose sum is σ = 31304235600. Its totient is φ = 30956410404.

The previous prime is 31130322983. The next prime is 31130323009. The reversal of 31130323001 is 10032303113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31130323001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31130323009) 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 3 ways as a sum of consecutive naturals, for example, 86956031 + ... + 86956388.

It is an arithmetic number, because the mean of its divisors is an integer number (7826058900).

Almost surely, 2^31130323001 is an apocalyptic number.

It is an amenable number.

31130323001 is a deficient number, since it is larger than the sum of its proper divisors (173912599).

31130323001 is a wasteful number, since it uses less digits than its factorization.

31130323001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173912598.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31130323001 its reverse (10032303113), we get a palindrome (41162626114).

The spelling of 31130323001 in words is "thirty-one billion, one hundred thirty million, three hundred twenty-three thousand, one".