21142102341 has 8 divisors (see below), whose sum is σ = 28190865280. Its totient is φ = 14094037152.

The previous prime is 21142102243. The next prime is 21142102349. The reversal of 21142102341 is 14320124112.

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

It is not a de Polignac number, because 21142102341 - 2⁹ = 21142101829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21142102349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99085 + ... + 228258.

It is an arithmetic number, because the mean of its divisors is an integer number (3523858160).

Almost surely, 2^21142102341 is an apocalyptic number.

It is an amenable number.

21142102341 is a deficient number, since it is larger than the sum of its proper divisors (7048762939).

21142102341 is a wasteful number, since it uses less digits than its factorization.

21142102341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348875.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21142102341 its reverse (14320124112), we get a palindrome (35462226453).

The spelling of 21142102341 in words is "twenty-one billion, one hundred forty-two million, one hundred two thousand, three hundred forty-one".