102121001011 has 2 divisors, whose sum is σ = 102121001012. Its totient is φ = 102121001010.

The previous prime is 102121000963. The next prime is 102121001083. The reversal of 102121001011 is 110100121201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102121001011 - 2¹³ = 102120992819 is a prime.

It is not a weakly prime, because it can be changed into another prime (102121001111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060500505 + 51060500506.

It is an arithmetic number, because the mean of its divisors is an integer number (51060500506).

Almost surely, 2^102121001011 is an apocalyptic number.

102121001011 is a deficient number, since it is larger than the sum of its proper divisors (1).

102121001011 is an equidigital number, since it uses as much as digits as its factorization.

102121001011 is an odious number, because the sum of its binary digits is odd.

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

Adding to 102121001011 its reverse (110100121201), we get a palindrome (212221122212).

The spelling of 102121001011 in words is "one hundred two billion, one hundred twenty-one million, one thousand, eleven".