102020011031211 has 64 divisors (see below), whose sum is σ = 182983782998016. Its totient is φ = 49013513164800.

The previous prime is 102020011031161. The next prime is 102020011031249. The reversal of 102020011031211 is 112130110020201.

It is not a de Polignac number, because 102020011031211 - 2¹⁰ = 102020011030187 is a prime.

It is a super-2 number, since 2×102020011031211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102020011031011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 354409900 + ... + 354697641.

It is an arithmetic number, because the mean of its divisors is an integer number (2859121609344).

Almost surely, 2^{102020011031211} is an apocalyptic number.

102020011031211 is a deficient number, since it is larger than the sum of its proper divisors (80963771966805).

102020011031211 is a wasteful number, since it uses less digits than its factorization.

102020011031211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709107612.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 102020011031211 its reverse (112130110020201), we get a palindrome (214150121051412).

The spelling of 102020011031211 in words is "one hundred two trillion, twenty billion, eleven million, thirty-one thousand, two hundred eleven".