21021020123014 has 8 divisors (see below), whose sum is σ = 31533686820288. Its totient is φ = 10509791182920.

The previous prime is 21021020122981. The next prime is 21021020123023. The reversal of 21021020123014 is 41032102012012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21021020122982 and 21021020123000.

It is a congruent number.

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, 359402742 + ... + 359461225.

It is an arithmetic number, because the mean of its divisors is an integer number (3941710852536).

Almost surely, 2^{21021020123014} is an apocalyptic number.

21021020123014 is a deficient number, since it is larger than the sum of its proper divisors (10512666697274).

21021020123014 is a wasteful number, since it uses less digits than its factorization.

21021020123014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718878590.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21021020123014 its reverse (41032102012012), we get a palindrome (62053122135026).

The spelling of 21021020123014 in words is "twenty-one trillion, twenty-one billion, twenty million, one hundred twenty-three thousand, fourteen".