210321023452 has 24 divisors (see below), whose sum is σ = 387793276416. Its totient is φ = 99611725488.

The previous prime is 210321023359. The next prime is 210321023509. The reversal of 210321023452 is 254320123012.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 11088088 + ... + 11107039.

It is an arithmetic number, because the mean of its divisors is an integer number (16158053184).

Almost surely, 2^210321023452 is an apocalyptic number.

It is an amenable number.

210321023452 is a deficient number, since it is larger than the sum of its proper divisors (177472252964).

210321023452 is a wasteful number, since it uses less digits than its factorization.

210321023452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22195257 (or 22195255 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 210321023452 its reverse (254320123012), we get a palindrome (464641146464).

It can be divided in two parts, 21032 and 1023452, that added together give a square (1044484 = 1022²).

The spelling of 210321023452 in words is "two hundred ten billion, three hundred twenty-one million, twenty-three thousand, four hundred fifty-two".