2143100031 has 16 divisors (see below), whose sum is σ = 2944111104. Its totient is φ = 1385949824.

The previous prime is 2143100023. The next prime is 2143100033. The reversal of 2143100031 is 1300013412.

It is a cyclic number.

It is not a de Polignac number, because 2143100031 - 2³ = 2143100023 is a prime.

It is a super-2 number, since 2×2143100031² = 9185755485744401922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143100033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51321 + ... + 83186.

It is an arithmetic number, because the mean of its divisors is an integer number (184006944).

Almost surely, 2^2143100031 is an apocalyptic number.

2143100031 is a deficient number, since it is larger than the sum of its proper divisors (801011073).

2143100031 is a wasteful number, since it uses less digits than its factorization.

2143100031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134670.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2143100031 is about 46293.6284060777. The cubic root of 2143100031 is about 1289.2806980856.

Adding to 2143100031 its reverse (1300013412), we get a palindrome (3443113443).

The spelling of 2143100031 in words is "two billion, one hundred forty-three million, one hundred thousand, thirty-one".