21012301614 has 64 divisors (see below), whose sum is σ = 45321292800. Its totient is φ = 6493094784.

The previous prime is 21012301577. The next prime is 21012301633. The reversal of 21012301614 is 41610321012.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1969707 + ... + 1980345.

It is an arithmetic number, because the mean of its divisors is an integer number (708145200).

Almost surely, 2^21012301614 is an apocalyptic number.

21012301614 is an abundant number, since it is smaller than the sum of its proper divisors (24308991186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21012301614 is a wasteful number, since it uses less digits than its factorization.

21012301614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10762 (or 10728 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21012301614 its reverse (41610321012), we get a palindrome (62622622626).

The spelling of 21012301614 in words is "twenty-one billion, twelve million, three hundred one thousand, six hundred fourteen".