31130303201 has 4 divisors (see below), whose sum is σ = 31139024304. Its totient is φ = 31121582100.

The previous prime is 31130303147. The next prime is 31130303203. The reversal of 31130303201 is 10230303113.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10230303113 = 1061 ⋅9642133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31130303201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31130303201.

It is not an unprimeable number, because it can be changed into a prime (31130303203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4355195 + ... + 4362336.

It is an arithmetic number, because the mean of its divisors is an integer number (7784756076).

Almost surely, 2^31130303201 is an apocalyptic number.

It is an amenable number.

31130303201 is a deficient number, since it is larger than the sum of its proper divisors (8721103).

31130303201 is an equidigital number, since it uses as much as digits as its factorization.

31130303201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721102.

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

Adding to 31130303201 its reverse (10230303113), we get a palindrome (41360606314).

The spelling of 31130303201 in words is "thirty-one billion, one hundred thirty million, three hundred three thousand, two hundred one".