102021211113 has 48 divisors (see below), whose sum is σ = 154973243520. Its totient is φ = 59507255808.

The previous prime is 102021211093. The next prime is 102021211169. The reversal of 102021211113 is 311112120201.

It is not a de Polignac number, because 102021211113 - 2⁶ = 102021211049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102021211092 and 102021211101.

It is not an unprimeable number, because it can be changed into a prime (102021211183) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 651745 + ... + 792977.

It is an arithmetic number, because the mean of its divisors is an integer number (3228609240).

Almost surely, 2^102021211113 is an apocalyptic number.

It is an amenable number.

102021211113 is a deficient number, since it is larger than the sum of its proper divisors (52952032407).

102021211113 is a wasteful number, since it uses less digits than its factorization.

102021211113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141326 (or 141307 counting only the distinct ones).

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

Adding to 102021211113 its reverse (311112120201), we get a palindrome (413133331314).

The spelling of 102021211113 in words is "one hundred two billion, twenty-one million, two hundred eleven thousand, one hundred thirteen".