2101423242 has 32 divisors (see below), whose sum is σ = 4269312000. Its totient is φ = 689415408.

The previous prime is 2101423211. The next prime is 2101423243. The reversal of 2101423242 is 2423241012.

It is not an unprimeable number, because it can be changed into a prime (2101423243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874759 + ... + 877157.

It is an arithmetic number, because the mean of its divisors is an integer number (133416000).

Almost surely, 2^2101423242 is an apocalyptic number.

2101423242 is an abundant number, since it is smaller than the sum of its proper divisors (2167888758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101423242 is a wasteful number, since it uses less digits than its factorization.

2101423242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4650.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2101423242 is about 45841.2831626690. The cubic root of 2101423242 is about 1280.8683971250.

Adding to 2101423242 its reverse (2423241012), we get a palindrome (4524664254).

The spelling of 2101423242 in words is "two billion, one hundred one million, four hundred twenty-three thousand, two hundred forty-two".