21115351301 has 16 divisors (see below), whose sum is σ = 24272965440. Its totient is φ = 18166216320.

The previous prime is 21115351267. The next prime is 21115351337. The reversal of 21115351301 is 10315351112.

It is a cyclic number.

It is not a de Polignac number, because 21115351301 - 2⁶ = 21115351237 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 (21115350301) 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, 146171 + ... + 252183.

It is an arithmetic number, because the mean of its divisors is an integer number (1517060340).

Almost surely, 2^21115351301 is an apocalyptic number.

It is an amenable number.

21115351301 is a deficient number, since it is larger than the sum of its proper divisors (3157614139).

21115351301 is a wasteful number, since it uses less digits than its factorization.

21115351301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106996.

The product of its (nonzero) digits is 450, while the sum is 23.

The spelling of 21115351301 in words is "twenty-one billion, one hundred fifteen million, three hundred fifty-one thousand, three hundred one".