102423355 has 4 divisors (see below), whose sum is σ = 122908032. Its totient is φ = 81938680.

The previous prime is 102423353. The next prime is 102423383. The reversal of 102423355 is 553324201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 553324201 = 163 ⋅3394627.

It is not a de Polignac number, because 102423355 - 2¹ = 102423353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102423353) 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, 10242331 + ... + 10242340.

It is an arithmetic number, because the mean of its divisors is an integer number (30727008).

Almost surely, 2^102423355 is an apocalyptic number.

102423355 is a deficient number, since it is larger than the sum of its proper divisors (20484677).

102423355 is an equidigital number, since it uses as much as digits as its factorization.

102423355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20484676.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 102423355 is about 10120.4424310403. The cubic root of 102423355 is about 467.8784033449.

Adding to 102423355 its reverse (553324201), we get a palindrome (655747556).

The spelling of 102423355 in words is "one hundred two million, four hundred twenty-three thousand, three hundred fifty-five".