102011011021 has 8 divisors (see below), whose sum is σ = 106147148544. Its totient is φ = 97956777360.

The previous prime is 102011010961. The next prime is 102011011031. The reversal of 102011011021 is 120110110201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102011011021 - 2³⁵ = 67651272653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102011010989 and 102011011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011011031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20473425 + ... + 20478406.

It is an arithmetic number, because the mean of its divisors is an integer number (13268393568).

Almost surely, 2^102011011021 is an apocalyptic number.

It is an amenable number.

102011011021 is a deficient number, since it is larger than the sum of its proper divisors (4136137523).

102011011021 is an equidigital number, since it uses as much as digits as its factorization.

102011011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40951931.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 102011011021 its reverse (120110110201), we get a palindrome (222121121222).

The spelling of 102011011021 in words is "one hundred two billion, eleven million, eleven thousand, twenty-one".