21403120014 has 48 divisors (see below), whose sum is σ = 47302669440. Its totient is φ = 6992148240.

The previous prime is 21403120007. The next prime is 21403120069. The reversal of 21403120014 is 41002130412.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321079 + ... + 381965.

It is an arithmetic number, because the mean of its divisors is an integer number (985472280).

Almost surely, 2^21403120014 is an apocalyptic number.

21403120014 is an abundant number, since it is smaller than the sum of its proper divisors (25899549426).

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

21403120014 is a wasteful number, since it uses less digits than its factorization.

21403120014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61285 (or 61282 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21403120014 its reverse (41002130412), we get a palindrome (62405250426).

The spelling of 21403120014 in words is "twenty-one billion, four hundred three million, one hundred twenty thousand, fourteen".