102121442423111 has 8 divisors (see below), whose sum is σ = 102666126811104. Its totient is φ = 101578200908800.

The previous prime is 102121442423087. The next prime is 102121442423113. The reversal of 102121442423111 is 111324244121201.

It is a happy number.

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 102121442423111 - 2¹⁸ = 102121442160967 is a prime.

It is a super-3 number, since 3×102121442423111³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121442423113) 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 7 ways as a sum of consecutive naturals, for example, 360576491 + ... + 360859596.

It is an arithmetic number, because the mean of its divisors is an integer number (12833265851388).

Almost surely, 2^{102121442423111} is an apocalyptic number.

102121442423111 is a deficient number, since it is larger than the sum of its proper divisors (544684387993).

102121442423111 is an equidigital number, since it uses as much as digits as its factorization.

102121442423111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721436841.

The product of its (nonzero) digits is 3072, while the sum is 29.

Adding to 102121442423111 its reverse (111324244121201), we get a palindrome (213445686544312).

The spelling of 102121442423111 in words is "one hundred two trillion, one hundred twenty-one billion, four hundred forty-two million, four hundred twenty-three thousand, one hundred eleven".