102112001 has 4 divisors (see below), whose sum is σ = 102132672. Its totient is φ = 102091332.

The previous prime is 102111959. The next prime is 102112009. The reversal of 102112001 is 100211201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100211201 = 131 ⋅764971.

It is a cyclic number.

It is not a de Polignac number, because 102112001 - 2¹⁸ = 101849857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102112001.

It is not an unprimeable number, because it can be changed into a prime (102112009) 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, 1916 + ... + 14418.

It is an arithmetic number, because the mean of its divisors is an integer number (25533168).

Almost surely, 2^102112001 is an apocalyptic number.

It is an amenable number.

102112001 is a deficient number, since it is larger than the sum of its proper divisors (20671).

102112001 is an equidigital number, since it uses as much as digits as its factorization.

102112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20670.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 102112001 is about 10105.0482928089. The cubic root of 102112001 is about 467.4038251454.

Adding to 102112001 its reverse (100211201), we get a palindrome (202323202).

It can be divided in two parts, 10211200 and 1, that added together give a palindrome (10211201).

The spelling of 102112001 in words is "one hundred two million, one hundred twelve thousand, one".