102111020001111 has 16 divisors (see below), whose sum is σ = 148525303541760. Its totient is φ = 61885390192320.

The previous prime is 102111020001101. The next prime is 102111020001143. The reversal of 102111020001111 is 111100020111201.

It is not a de Polignac number, because 102111020001111 - 2⁵ = 102111020001079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111020001101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37044571 + ... + 39705443.

It is an arithmetic number, because the mean of its divisors is an integer number (9282831471360).

Almost surely, 2^{102111020001111} is an apocalyptic number.

102111020001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102111020001111 is a deficient number, since it is larger than the sum of its proper divisors (46414283540649).

102111020001111 is a wasteful number, since it uses less digits than its factorization.

102111020001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3823766.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 102111020001111 its reverse (111100020111201), we get a palindrome (213211040112312).

The spelling of 102111020001111 in words is "one hundred two trillion, one hundred eleven billion, twenty million, one thousand, one hundred eleven".