102012001111 has 4 divisors (see below), whose sum is σ = 102041513392. Its totient is φ = 101982488832.

The previous prime is 102012001093. The next prime is 102012001121. The reversal of 102012001111 is 111100210201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111100210201 = 314161 ⋅353641.

It is a cyclic number.

It is not a de Polignac number, because 102012001111 - 2¹⁵ = 102011968343 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 (102012001121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14750955 + ... + 14757868.

It is an arithmetic number, because the mean of its divisors is an integer number (25510378348).

Almost surely, 2^102012001111 is an apocalyptic number.

102012001111 is a deficient number, since it is larger than the sum of its proper divisors (29512281).

102012001111 is an equidigital number, since it uses as much as digits as its factorization.

102012001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29512280.

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

Adding to 102012001111 its reverse (111100210201), we get a palindrome (213112211312).

The spelling of 102012001111 in words is "one hundred two billion, twelve million, one thousand, one hundred eleven".