2102144342 has 4 divisors (see below), whose sum is σ = 3153216516. Its totient is φ = 1051072170.

The previous prime is 2102144339. The next prime is 2102144351. The reversal of 2102144342 is 2434412012.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2102144342² = 8838021669205225928, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 525536084 + ... + 525536087.

It is an arithmetic number, because the mean of its divisors is an integer number (788304129).

Almost surely, 2^2102144342 is an apocalyptic number.

2102144342 is a deficient number, since it is larger than the sum of its proper divisors (1051072174).

2102144342 is a wasteful number, since it uses less digits than its factorization.

2102144342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051072173.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2102144342 is about 45849.1476692861. The cubic root of 2102144342 is about 1281.0148896791.

Adding to 2102144342 its reverse (2434412012), we get a palindrome (4536556354).

The spelling of 2102144342 in words is "two billion, one hundred two million, one hundred forty-four thousand, three hundred forty-two".