211303131994 has 8 divisors (see below), whose sum is σ = 316971066420. Its totient is φ = 105646109856.

The previous prime is 211303131989. The next prime is 211303132009. The reversal of 211303131994 is 499131303112.

It can be written as a sum of positive squares in 2 ways, for example, as 157994325225 + 53308806769 = 397485^2 + 230887^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2679489 + ... + 2757220.

Almost surely, 2^211303131994 is an apocalyptic number.

211303131994 is a deficient number, since it is larger than the sum of its proper divisors (105667934426).

211303131994 is a wasteful number, since it uses less digits than its factorization.

211303131994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5456144.

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 211303131994 in words is "two hundred eleven billion, three hundred three million, one hundred thirty-one thousand, nine hundred ninety-four".