102123669 has 4 divisors (see below), whose sum is σ = 136164896. Its totient is φ = 68082444.

The previous prime is 102123649. The next prime is 102123691. The reversal of 102123669 is 966321201.

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: 966321201 = 3 ⋅322107067.

It is not a de Polignac number, because 102123669 - 2¹³ = 102115477 is a prime.

It is a super-2 number, since 2×102123669² = 20858487540043122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102123629) 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, 17020609 + ... + 17020614.

It is an arithmetic number, because the mean of its divisors is an integer number (34041224).

Almost surely, 2^102123669 is an apocalyptic number.

It is an amenable number.

102123669 is a deficient number, since it is larger than the sum of its proper divisors (34041227).

102123669 is an equidigital number, since it uses as much as digits as its factorization.

102123669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34041226.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 102123669 is about 10105.6256115097. The cubic root of 102123669 is about 467.4216273628.

The spelling of 102123669 in words is "one hundred two million, one hundred twenty-three thousand, six hundred sixty-nine".