21000141514 has 32 divisors (see below), whose sum is σ = 38300299200. Its totient is φ = 8511171840.

The previous prime is 21000141479. The next prime is 21000141521. The reversal of 21000141514 is 41514100012.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 21000141491 and 21000141500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470529 + ... + 1484740.

It is an arithmetic number, because the mean of its divisors is an integer number (1196884350).

Almost surely, 2^21000141514 is an apocalyptic number.

21000141514 is a deficient number, since it is larger than the sum of its proper divisors (17300157686).

21000141514 is a wasteful number, since it uses less digits than its factorization.

21000141514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955318.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 21000141514 its reverse (41514100012), we get a palindrome (62514241526).

The spelling of 21000141514 in words is "twenty-one billion, one hundred forty-one thousand, five hundred fourteen".