2101938142 has 8 divisors (see below), whose sum is σ = 3153150000. Its totient is φ = 1050888144.

The previous prime is 2101938133. The next prime is 2101938149. The reversal of 2101938142 is 2418391012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101938149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159 + ... + 64837.

It is an arithmetic number, because the mean of its divisors is an integer number (394143750).

Almost surely, 2^2101938142 is an apocalyptic number.

2101938142 is a deficient number, since it is larger than the sum of its proper divisors (1051211858).

2101938142 is a wasteful number, since it uses less digits than its factorization.

2101938142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80930.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2101938142 is about 45846.8989354787. The cubic root of 2101938142 is about 1280.9730032583.

The spelling of 2101938142 in words is "two billion, one hundred one million, nine hundred thirty-eight thousand, one hundred forty-two".