102010103331021 has 20 divisors (see below), whose sum is σ = 152610552392892. Its totient is φ = 67906282436928.

The previous prime is 102010103330983. The next prime is 102010103331023. The reversal of 102010103331021 is 120133301010201.

102010103331021 is a `hidden beast` number, since 10 + 201 + 0 + 103 + 331 + 0 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 72426142226025 + 29583961104996 = 8510355^2 + 5439114^2 .

It is not a de Polignac number, because 102010103331021 - 2¹⁵ = 102010103298253 is a prime.

It is a super-2 number, since 2×102010103331021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102010103330985 and 102010103331003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102010103331023) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 930066280 + ... + 930175953.

Almost surely, 2^{102010103331021} is an apocalyptic number.

It is an amenable number.

102010103331021 is a deficient number, since it is larger than the sum of its proper divisors (50600449061871).

102010103331021 is an equidigital number, since it uses as much as digits as its factorization.

102010103331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860242922 (or 1860242913 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 102010103331021 its reverse (120133301010201), we get a palindrome (222143404341222).

The spelling of 102010103331021 in words is "one hundred two trillion, ten billion, one hundred three million, three hundred thirty-one thousand, twenty-one".