31130301001 has 4 divisors (see below), whose sum is σ = 31220014032. Its totient is φ = 31040587972.

The previous prime is 31130300989. The next prime is 31130301011. The reversal of 31130301001 is 10010303113.

It is a happy number.

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: 10010303113 = 10883 ⋅919811.

It is a cyclic number.

It is not a de Polignac number, because 31130301001 - 2⁹ = 31130300489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31130301011) 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, 44855995 + ... + 44856688.

It is an arithmetic number, because the mean of its divisors is an integer number (7805003508).

Almost surely, 2^31130301001 is an apocalyptic number.

It is an amenable number.

31130301001 is a deficient number, since it is larger than the sum of its proper divisors (89713031).

31130301001 is an equidigital number, since it uses as much as digits as its factorization.

31130301001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89713030.

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 31130301001 its reverse (10010303113), we get a palindrome (41140604114).

The spelling of 31130301001 in words is "thirty-one billion, one hundred thirty million, three hundred one thousand, one".