211431301099 has 2 divisors, whose sum is σ = 211431301100. Its totient is φ = 211431301098.

The previous prime is 211431301033. The next prime is 211431301117. The reversal of 211431301099 is 990103134112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211431301099 - 2¹⁵ = 211431268331 is a prime.

It is not a weakly prime, because it can be changed into another prime (211431301799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105715650549 + 105715650550.

It is an arithmetic number, because the mean of its divisors is an integer number (105715650550).

Almost surely, 2^211431301099 is an apocalyptic number.

211431301099 is a deficient number, since it is larger than the sum of its proper divisors (1).

211431301099 is an equidigital number, since it uses as much as digits as its factorization.

211431301099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 211431301099 in words is "two hundred eleven billion, four hundred thirty-one million, three hundred one thousand, ninety-nine".