21100020103010 has 32 divisors (see below), whose sum is σ = 38005407982080. Its totient is φ = 8434370832768.

The previous prime is 21100020102943. The next prime is 21100020103031. The reversal of 21100020103010 is 1030102000112.

It is a super-2 number, since 2×21100020103010² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21100020102982 and 21100020103000.

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, 194895854 + ... + 195004086.

It is an arithmetic number, because the mean of its divisors is an integer number (1187668999440).

Almost surely, 2^{21100020103010} is an apocalyptic number.

21100020103010 is a deficient number, since it is larger than the sum of its proper divisors (16905387879070).

21100020103010 is a wasteful number, since it uses less digits than its factorization.

21100020103010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121082.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 21100020103010 its reverse (1030102000112), we get a palindrome (22130122103122).

The spelling of 21100020103010 in words is "twenty-one trillion, one hundred billion, twenty million, one hundred three thousand, ten".