2101001313031 has 4 divisors (see below), whose sum is σ = 2173449634200. Its totient is φ = 2028552991864.

The previous prime is 2101001313001. The next prime is 2101001313049. The reversal of 2101001313031 is 1303131001012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2101001313031 - 2¹⁹ = 2101000788743 is a prime.

It is a super-2 number, since 2×2101001313031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101001312996 and 2101001313014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101001313001) 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, 36224160541 + ... + 36224160598.

It is an arithmetic number, because the mean of its divisors is an integer number (543362408550).

Almost surely, 2^{2101001313031} is an apocalyptic number.

2101001313031 is a deficient number, since it is larger than the sum of its proper divisors (72448321169).

2101001313031 is an equidigital number, since it uses as much as digits as its factorization.

2101001313031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72448321168.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 2101001313031 its reverse (1303131001012), we get a palindrome (3404132314043).

The spelling of 2101001313031 in words is "two trillion, one hundred one billion, one million, three hundred thirteen thousand, thirty-one".