21130313150255 has 4 divisors (see below), whose sum is σ = 25356375780312. Its totient is φ = 16904250520200.

The previous prime is 21130313150251. The next prime is 21130313150267. The reversal of 21130313150255 is 55205131303112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 21130313150255 - 2² = 21130313150251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130313150251) 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, 2113031315021 + ... + 2113031315030.

It is an arithmetic number, because the mean of its divisors is an integer number (6339093945078).

Almost surely, 2^{21130313150255} is an apocalyptic number.

21130313150255 is a deficient number, since it is larger than the sum of its proper divisors (4226062630057).

21130313150255 is an equidigital number, since it uses as much as digits as its factorization.

21130313150255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226062630056.

The product of its (nonzero) digits is 13500, while the sum is 32.

Adding to 21130313150255 its reverse (55205131303112), we get a palindrome (76335444453367).

The spelling of 21130313150255 in words is "twenty-one trillion, one hundred thirty billion, three hundred thirteen million, one hundred fifty thousand, two hundred fifty-five".