2131912207 has 2 divisors, whose sum is σ = 2131912208. Its totient is φ = 2131912206.

The previous prime is 2131912201. The next prime is 2131912229. The reversal of 2131912207 is 7022191312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2131912207 - 2³ = 2131912199 is a prime.

It is a super-2 number, since 2×2131912207² = 9090099316711221698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131912201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065956103 + 1065956104.

It is an arithmetic number, because the mean of its divisors is an integer number (1065956104).

Almost surely, 2^2131912207 is an apocalyptic number.

2131912207 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131912207 is an equidigital number, since it uses as much as digits as its factorization.

2131912207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 2131912207 is about 46172.6348284349. The cubic root of 2131912207 is about 1287.0332654796.

The spelling of 2131912207 in words is "two billion, one hundred thirty-one million, nine hundred twelve thousand, two hundred seven".