11721151012102 has 16 divisors (see below), whose sum is σ = 20099742423840. Its totient is φ = 5021765261568.

The previous prime is 11721151012099. The next prime is 11721151012127. The reversal of 11721151012102 is 20121015112711.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132051733 + ... + 132140464.

It is an arithmetic number, because the mean of its divisors is an integer number (1256233901490).

Almost surely, 2^{11721151012102} is an apocalyptic number.

11721151012102 is a deficient number, since it is larger than the sum of its proper divisors (8378591411738).

11721151012102 is a wasteful number, since it uses less digits than its factorization.

11721151012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264195375.

The product of its (nonzero) digits is 280, while the sum is 25.

Adding to 11721151012102 its reverse (20121015112711), we get a palindrome (31842166124813).

The spelling of 11721151012102 in words is "eleven trillion, seven hundred twenty-one billion, one hundred fifty-one million, twelve thousand, one hundred two".