2102031197 has 4 divisors (see below), whose sum is σ = 2402321376. Its totient is φ = 1801741020.

The previous prime is 2102031193. The next prime is 2102031223. The reversal of 2102031197 is 7911302012.

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.

It is a cyclic number.

It is not a de Polignac number, because 2102031197 - 2² = 2102031193 is a prime.

It is a super-2 number, since 2×2102031197² = 8837070306322505618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102031193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150145079 + ... + 150145092.

It is an arithmetic number, because the mean of its divisors is an integer number (600580344).

Almost surely, 2^2102031197 is an apocalyptic number.

It is an amenable number.

2102031197 is a deficient number, since it is larger than the sum of its proper divisors (300290179).

2102031197 is an equidigital number, since it uses as much as digits as its factorization.

2102031197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300290178.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 2102031197 is about 45847.9137693309. The cubic root of 2102031197 is about 1280.9919063175.

The spelling of 2102031197 in words is "two billion, one hundred two million, thirty-one thousand, one hundred ninety-seven".