21114121342 has 8 divisors (see below), whose sum is σ = 31802598432. Its totient is φ = 10513255200.

The previous prime is 21114121339. The next prime is 21114121349. The reversal of 21114121342 is 24312141112.

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

It is a super-2 number, since 2×21114121342² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114121349) 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, 21902134 + ... + 21903097.

It is an arithmetic number, because the mean of its divisors is an integer number (3975324804).

Almost surely, 2^21114121342 is an apocalyptic number.

21114121342 is a deficient number, since it is larger than the sum of its proper divisors (10688477090).

21114121342 is a wasteful number, since it uses less digits than its factorization.

21114121342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43805474.

The product of its digits is 384, while the sum is 22.

Adding to 21114121342 its reverse (24312141112), we get a palindrome (45426262454).

The spelling of 21114121342 in words is "twenty-one billion, one hundred fourteen million, one hundred twenty-one thousand, three hundred forty-two".