10203132321 has 48 divisors (see below), whose sum is σ = 16022909760. Its totient is φ = 6241173120.

The previous prime is 10203132299. The next prime is 10203132383. The reversal of 10203132321 is 12323130201.

10203132321 is a `hidden beast` number, since 10 + 20 + 313 + 2 + 321 = 666.

It is not a de Polignac number, because 10203132321 - 2¹⁹ = 10202608033 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10203132294 and 10203132303.

It is not an unprimeable number, because it can be changed into a prime (10203132521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 402966 + ... + 427536.

It is an arithmetic number, because the mean of its divisors is an integer number (333810620).

Almost surely, 2^10203132321 is an apocalyptic number.

It is an amenable number.

10203132321 is a deficient number, since it is larger than the sum of its proper divisors (5819777439).

10203132321 is a wasteful number, since it uses less digits than its factorization.

10203132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24686 (or 24683 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10203132321 its reverse (12323130201), we get a palindrome (22526262522).

The spelling of 10203132321 in words is "ten billion, two hundred three million, one hundred thirty-two thousand, three hundred twenty-one".