21310341151 has 4 divisors (see below), whose sum is σ = 23247644904. Its totient is φ = 19373037400.

The previous prime is 21310341139. The next prime is 21310341161. The reversal of 21310341151 is 15114301312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21310341151 - 2¹³ = 21310332959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310341161) 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, 968651860 + ... + 968651881.

It is an arithmetic number, because the mean of its divisors is an integer number (5811911226).

Almost surely, 2^21310341151 is an apocalyptic number.

21310341151 is a deficient number, since it is larger than the sum of its proper divisors (1937303753).

21310341151 is a wasteful number, since it uses less digits than its factorization.

21310341151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937303752.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 21310341151 its reverse (15114301312), we get a palindrome (36424642463).

The spelling of 21310341151 in words is "twenty-one billion, three hundred ten million, three hundred forty-one thousand, one hundred fifty-one".