21313255342150 has 24 divisors (see below), whose sum is σ = 40609548963144. Its totient is φ = 8317367937600.

The previous prime is 21313255342139. The next prime is 21313255342189. The reversal of 21313255342150 is 5124355231312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5198352912 + ... + 5198357011.

It is an arithmetic number, because the mean of its divisors is an integer number (1692064540131).

Almost surely, 2^{21313255342150} is an apocalyptic number.

21313255342150 is a deficient number, since it is larger than the sum of its proper divisors (19296293620994).

21313255342150 is a wasteful number, since it uses less digits than its factorization.

21313255342150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10396709976 (or 10396709971 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 21313255342150 in words is "twenty-one trillion, three hundred thirteen billion, two hundred fifty-five million, three hundred forty-two thousand, one hundred fifty".