2101002031 has 8 divisors (see below), whose sum is σ = 2121997824. Its totient is φ = 2080031640.

The previous prime is 2101002023. The next prime is 2101002061. The reversal of 2101002031 is 1302001012.

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 2101002031 - 2³ = 2101002023 is a prime.

It is a super-2 number, since 2×2101002031² = 8828419068532249922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101001999 and 2101002017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101002011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189676 + ... + 200446.

It is an arithmetic number, because the mean of its divisors is an integer number (265249728).

Almost surely, 2^2101002031 is an apocalyptic number.

2101002031 is a deficient number, since it is larger than the sum of its proper divisors (20995793).

2101002031 is a wasteful number, since it uses less digits than its factorization.

2101002031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12701.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2101002031 is about 45836.6887002104. The cubic root of 2101002031 is about 1280.7828119688.

Adding to 2101002031 its reverse (1302001012), we get a palindrome (3403003043).

The spelling of 2101002031 in words is "two billion, one hundred one million, two thousand, thirty-one".