102011100121 has 4 divisors (see below), whose sum is σ = 116584114432. Its totient is φ = 87438085812.

The previous prime is 102011100101. The next prime is 102011100161. The reversal of 102011100121 is 121001110201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 102011100121 - 2²³ = 102002711513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102011100098 and 102011100107.

It is not an unprimeable number, because it can be changed into a prime (102011100101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7286507145 + ... + 7286507158.

It is an arithmetic number, because the mean of its divisors is an integer number (29146028608).

Almost surely, 2^102011100121 is an apocalyptic number.

It is an amenable number.

102011100121 is a deficient number, since it is larger than the sum of its proper divisors (14573014311).

102011100121 is an equidigital number, since it uses as much as digits as its factorization.

102011100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14573014310.

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

Adding to 102011100121 its reverse (121001110201), we get a palindrome (223012210322).

The spelling of 102011100121 in words is "one hundred two billion, eleven million, one hundred thousand, one hundred twenty-one".