21134242114 has 4 divisors (see below), whose sum is σ = 31701363174. Its totient is φ = 10567121056.

The previous prime is 21134242097. The next prime is 21134242147. The reversal of 21134242114 is 41124243112.

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

It can be written as a sum of positive squares in only one way, i.e., 21107150089 + 27092025 = 145283^2 + 5205^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5283560527 + ... + 5283560530.

Almost surely, 2^21134242114 is an apocalyptic number.

21134242114 is a deficient number, since it is larger than the sum of its proper divisors (10567121060).

21134242114 is a wasteful number, since it uses less digits than its factorization.

21134242114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10567121059.

The product of its digits is 1536, while the sum is 25.

Adding to 21134242114 its reverse (41124243112), we get a palindrome (62258485226).

The spelling of 21134242114 in words is "twenty-one billion, one hundred thirty-four million, two hundred forty-two thousand, one hundred fourteen".