21325131313030 has 8 divisors (see below), whose sum is σ = 38385236363472. Its totient is φ = 8530052525208.

The previous prime is 21325131313019. The next prime is 21325131313033. The reversal of 21325131313030 is 3031313152312.

It is a happy number.

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

It is a super-2 number, since 2×21325131313030² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21325131313030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21325131313033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066256565642 + ... + 1066256565661.

It is an arithmetic number, because the mean of its divisors is an integer number (4798154545434).

Almost surely, 2^{21325131313030} is an apocalyptic number.

21325131313030 is a deficient number, since it is larger than the sum of its proper divisors (17060105050442).

21325131313030 is a wasteful number, since it uses less digits than its factorization.

21325131313030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132513131310.

The product of its (nonzero) digits is 4860, while the sum is 28.

Adding to 21325131313030 its reverse (3031313152312), we get a palindrome (24356444465342).

The spelling of 21325131313030 in words is "twenty-one trillion, three hundred twenty-five billion, one hundred thirty-one million, three hundred thirteen thousand, thirty".