2109321542 has 8 divisors (see below), whose sum is σ = 3176013456. Its totient is φ = 1050650392.

The previous prime is 2109321541. The next prime is 2109321569. The reversal of 2109321542 is 2451239012.

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 (2109321541) 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, 2004533 + ... + 2005584.

It is an arithmetic number, because the mean of its divisors is an integer number (397001682).

Almost surely, 2^2109321542 is an apocalyptic number.

2109321542 is a deficient number, since it is larger than the sum of its proper divisors (1066691914).

2109321542 is a wasteful number, since it uses less digits than its factorization.

2109321542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010382.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2109321542 is about 45927.3506965076. The cubic root of 2109321542 is about 1282.4711259137.

The spelling of 2109321542 in words is "two billion, one hundred nine million, three hundred twenty-one thousand, five hundred forty-two".