21031301232002 has 32 divisors (see below), whose sum is σ = 33505652808000. Its totient is φ = 9872996672448.

The previous prime is 21031301232001. The next prime is 21031301232017. The reversal of 21031301232002 is 20023210313012.

It is a super-2 number, since 2×21031301232002² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21031301232001) 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, 1684133 + ... + 6700664.

It is an arithmetic number, because the mean of its divisors is an integer number (1047051650250).

Almost surely, 2^{21031301232002} is an apocalyptic number.

21031301232002 is a deficient number, since it is larger than the sum of its proper divisors (12474351575998).

21031301232002 is a wasteful number, since it uses less digits than its factorization.

21031301232002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8385410.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21031301232002 its reverse (20023210313012), we get a palindrome (41054511545014).

The spelling of 21031301232002 in words is "twenty-one trillion, thirty-one billion, three hundred one million, two hundred thirty-two thousand, two".