10200123021321 has 16 divisors (see below), whose sum is σ = 15112110182400. Its totient is φ = 6799714446384.

The previous prime is 10200123021289. The next prime is 10200123021353. The reversal of 10200123021321 is 12312032100201.

10200123021321 is a `hidden beast` number, since 1 + 0 + 200 + 1 + 230 + 213 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (10200123021289) and next prime (10200123021353).

It is not a de Polignac number, because 10200123021321 - 2⁵ = 10200123021289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10200123021294 and 10200123021303.

It is not an unprimeable number, because it can be changed into a prime (10200123021721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9701001 + ... + 10700918.

It is an arithmetic number, because the mean of its divisors is an integer number (944506886400).

Almost surely, 2^{10200123021321} is an apocalyptic number.

It is an amenable number.

10200123021321 is a deficient number, since it is larger than the sum of its proper divisors (4911987161079).

10200123021321 is a wasteful number, since it uses less digits than its factorization.

10200123021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20420445 (or 20420439 counting only the distinct ones).

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

Adding to 10200123021321 its reverse (12312032100201), we get a palindrome (22512155121522).

The spelling of 10200123021321 in words is "ten trillion, two hundred billion, one hundred twenty-three million, twenty-one thousand, three hundred twenty-one".