21134002412 has 12 divisors (see below), whose sum is σ = 37026490536. Its totient is φ = 10555005120.

The previous prime is 21134002399. The next prime is 21134002441. The reversal of 21134002412 is 21420043112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2995058 + ... + 3002105.

It is an arithmetic number, because the mean of its divisors is an integer number (3085540878).

Almost surely, 2^21134002412 is an apocalyptic number.

It is an amenable number.

21134002412 is a deficient number, since it is larger than the sum of its proper divisors (15892488124).

21134002412 is a wasteful number, since it uses less digits than its factorization.

21134002412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5998048 (or 5998046 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21134002412 its reverse (21420043112), we get a palindrome (42554045524).

The spelling of 21134002412 in words is "twenty-one billion, one hundred thirty-four million, two thousand, four hundred twelve".