102011123010101 has 4 divisors (see below), whose sum is σ = 102015720405900. Its totient is φ = 102006525614304.

The previous prime is 102011123010073. The next prime is 102011123010131. The reversal of 102011123010101 is 101010321110201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84510697420900 + 17500425589201 = 9192970^2 + 4183351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102011123010101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011123010131) 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 in 3 ways as a sum of consecutive naturals, for example, 2298664616 + ... + 2298708993.

It is an arithmetic number, because the mean of its divisors is an integer number (25503930101475).

Almost surely, 2^{102011123010101} is an apocalyptic number.

It is an amenable number.

102011123010101 is a deficient number, since it is larger than the sum of its proper divisors (4597395799).

102011123010101 is an equidigital number, since it uses as much as digits as its factorization.

102011123010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4597395798.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 102011123010101 its reverse (101010321110201), we get a palindrome (203021444120302).

The spelling of 102011123010101 in words is "one hundred two trillion, eleven billion, one hundred twenty-three million, ten thousand, one hundred one".