102113401 has 4 divisors (see below), whose sum is σ = 109968292. Its totient is φ = 94258512.

The previous prime is 102113383. The next prime is 102113443. The reversal of 102113401 is 104311201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104311201 = 17 ⋅6135953.

It can be written as a sum of positive squares in 2 ways, for example, as 47279376 + 54834025 = 6876^2 + 7405^2 .

It is a cyclic number.

It is not a de Polignac number, because 102113401 - 2¹⁹ = 101589113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 7854877 = 102113401 / (1 + 0 + 2 + 1 + 1 + 3 + 4 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102116401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3927426 + ... + 3927451.

It is an arithmetic number, because the mean of its divisors is an integer number (27492073).

Almost surely, 2^102113401 is an apocalyptic number.

It is an amenable number.

102113401 is a deficient number, since it is larger than the sum of its proper divisors (7854891).

102113401 is an equidigital number, since it uses as much as digits as its factorization.

102113401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7854890.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 102113401 is about 10105.1175648777. The cubic root of 102113401 is about 467.4059612390.

Adding to 102113401 its reverse (104311201), we get a palindrome (206424602).

The spelling of 102113401 in words is "one hundred two million, one hundred thirteen thousand, four hundred one".