102012312100111 has 32 divisors (see below), whose sum is σ = 123817402396800. Its totient is φ = 82046435659776.

The previous prime is 102012312100001. The next prime is 102012312100117. The reversal of 102012312100111 is 111001213210201.

It is a happy number.

It is not a de Polignac number, because 102012312100111 - 2¹¹ = 102012312098063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012312100117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258000681 + ... + 258395773.

It is an arithmetic number, because the mean of its divisors is an integer number (3869293824900).

Almost surely, 2^{102012312100111} is an apocalyptic number.

102012312100111 is a deficient number, since it is larger than the sum of its proper divisors (21805090296689).

102012312100111 is a wasteful number, since it uses less digits than its factorization.

102012312100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401683.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 102012312100111 its reverse (111001213210201), we get a palindrome (213013525310312).

The spelling of 102012312100111 in words is "one hundred two trillion, twelve billion, three hundred twelve million, one hundred thousand, one hundred eleven".