2111251138 has 8 divisors (see below), whose sum is σ = 3169069632. Its totient is φ = 1054894596.

The previous prime is 2111251099. The next prime is 2111251157. The reversal of 2111251138 is 8311521112.

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 361870 + ... + 367657.

It is an arithmetic number, because the mean of its divisors is an integer number (396133704).

Almost surely, 2^2111251138 is an apocalyptic number.

2111251138 is a deficient number, since it is larger than the sum of its proper divisors (1057818494).

2111251138 is a wasteful number, since it uses less digits than its factorization.

2111251138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730976.

The product of its digits is 480, while the sum is 25.

The square root of 2111251138 is about 45948.3529411012. The cubic root of 2111251138 is about 1282.8620726217.

The spelling of 2111251138 in words is "two billion, one hundred eleven million, two hundred fifty-one thousand, one hundred thirty-eight".