21142143314 has 8 divisors (see below), whose sum is σ = 31727052300. Its totient is φ = 10566459216.

The previous prime is 21142143311. The next prime is 21142143331. The reversal of 21142143314 is 41334124112.

It can be written as a sum of positive squares in 2 ways, for example, as 18283637089 + 2858506225 = 135217^2 + 53465^2 .

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

It is not an unprimeable number, because it can be changed into a prime (21142143311) 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, 2300489 + ... + 2309660.

Almost surely, 2^21142143314 is an apocalyptic number.

21142143314 is a deficient number, since it is larger than the sum of its proper divisors (10584908986).

21142143314 is a wasteful number, since it uses less digits than its factorization.

21142143314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4612444.

The product of its digits is 2304, while the sum is 26.

Adding to 21142143314 its reverse (41334124112), we get a palindrome (62476267426).

The spelling of 21142143314 in words is "twenty-one billion, one hundred forty-two million, one hundred forty-three thousand, three hundred fourteen".