21011334543262 has 32 divisors (see below), whose sum is σ = 38237798449152. Its totient is φ = 8453031759744.

The previous prime is 21011334543259. The next prime is 21011334543271. The reversal of 21011334543262 is 26234543311012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115160698 + ... + 115343005.

It is an arithmetic number, because the mean of its divisors is an integer number (1194931201536).

Almost surely, 2^{21011334543262} is an apocalyptic number.

21011334543262 is a deficient number, since it is larger than the sum of its proper divisors (17226463905890).

21011334543262 is a wasteful number, since it uses less digits than its factorization.

21011334543262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230504112.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 21011334543262 its reverse (26234543311012), we get a palindrome (47245877854274).

The spelling of 21011334543262 in words is "twenty-one trillion, eleven billion, three hundred thirty-four million, five hundred forty-three thousand, two hundred sixty-two".