21012030333102 has 16 divisors (see below), whose sum is σ = 42089416911360. Its totient is φ = 6993117403512.

The previous prime is 21012030333067. The next prime is 21012030333109. The reversal of 21012030333102 is 20133303021012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21012030333109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2723172702 + ... + 2723180417.

It is an arithmetic number, because the mean of its divisors is an integer number (2630588556960).

Almost surely, 2^{21012030333102} is an apocalyptic number.

21012030333102 is an abundant number, since it is smaller than the sum of its proper divisors (21077386578258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21012030333102 is a wasteful number, since it uses less digits than its factorization.

21012030333102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5446353767.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21012030333102 its reverse (20133303021012), we get a palindrome (41145333354114).

The spelling of 21012030333102 in words is "twenty-one trillion, twelve billion, thirty million, three hundred thirty-three thousand, one hundred two".