102020330331 has 20 divisors (see below), whose sum is σ = 154547238384. Its totient is φ = 67055612400.

The previous prime is 102020330261. The next prime is 102020330353. The reversal of 102020330331 is 133033020201.

102020330331 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 2 + 0 + 330 + 331 = 666.

It is not a de Polignac number, because 102020330331 - 2¹¹ = 102020328283 is a prime.

It is a super-2 number, since 2×102020330331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102020331331) 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, 8864040 + ... + 8875541.

Almost surely, 2^102020330331 is an apocalyptic number.

102020330331 is a deficient number, since it is larger than the sum of its proper divisors (52526908053).

102020330331 is an equidigital number, since it uses as much as digits as its factorization.

102020330331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17739664 (or 17739655 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 102020330331 its reverse (133033020201), we get a palindrome (235053350532).

The spelling of 102020330331 in words is "one hundred two billion, twenty million, three hundred thirty thousand, three hundred thirty-one".