21120031314 has 32 divisors (see below), whose sum is σ = 46941336000. Its totient is φ = 7038820512.

The previous prime is 21120031217. The next prime is 21120031333. The reversal of 21120031314 is 41313002112.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324957 + ... + 384495.

It is an arithmetic number, because the mean of its divisors is an integer number (1466916750).

Almost surely, 2^21120031314 is an apocalyptic number.

21120031314 is an abundant number, since it is smaller than the sum of its proper divisors (25821304686).

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

21120031314 is a wasteful number, since it uses less digits than its factorization.

21120031314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66119 (or 66113 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21120031314 its reverse (41313002112), we get a palindrome (62433033426).

The spelling of 21120031314 in words is "twenty-one billion, one hundred twenty million, thirty-one thousand, three hundred fourteen".