2101420442 has 8 divisors (see below), whose sum is σ = 3438688032. Its totient is φ = 955191100.

The previous prime is 2101420429. The next prime is 2101420459. The reversal of 2101420442 is 2440241012.

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, 47759534 + ... + 47759577.

It is an arithmetic number, because the mean of its divisors is an integer number (429836004).

Almost surely, 2^2101420442 is an apocalyptic number.

2101420442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2101420442 is a deficient number, since it is larger than the sum of its proper divisors (1337267590).

2101420442 is a wasteful number, since it uses less digits than its factorization.

2101420442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95519124.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2101420442 is about 45841.2526225015. The cubic root of 2101420442 is about 1280.8678282355.

Adding to 2101420442 its reverse (2440241012), we get a palindrome (4541661454).

The spelling of 2101420442 in words is "two billion, one hundred one million, four hundred twenty thousand, four hundred forty-two".