21012413102 has 16 divisors (see below), whose sum is σ = 32038927872. Its totient is φ = 10333259640.

The previous prime is 21012413089. The next prime is 21012413113. The reversal of 21012413102 is 20131421012.

21012413102 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35774 + ... + 208097.

It is an arithmetic number, because the mean of its divisors is an integer number (2002432992).

Almost surely, 2^21012413102 is an apocalyptic number.

21012413102 is a deficient number, since it is larger than the sum of its proper divisors (11026514770).

21012413102 is a wasteful number, since it uses less digits than its factorization.

21012413102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244583.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21012413102 its reverse (20131421012), we get a palindrome (41143834114).

The spelling of 21012413102 in words is "twenty-one billion, twelve million, four hundred thirteen thousand, one hundred two".