102241442434 has 4 divisors (see below), whose sum is σ = 153362163654. Its totient is φ = 51120721216.

The previous prime is 102241442417. The next prime is 102241442447. The reversal of 102241442434 is 434244142201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434244142201 = 20533 ⋅21148597.

It can be written as a sum of positive squares in only one way, i.e., 101504048409 + 737394025 = 318597^2 + 27155^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 102241442396 and 102241442405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25560360607 + ... + 25560360610.

Almost surely, 2^102241442434 is an apocalyptic number.

102241442434 is a deficient number, since it is larger than the sum of its proper divisors (51120721220).

102241442434 is an equidigital number, since it uses as much as digits as its factorization.

102241442434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51120721219.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 102241442434 its reverse (434244142201), we get a palindrome (536485584635).

The spelling of 102241442434 in words is "one hundred two billion, two hundred forty-one million, four hundred forty-two thousand, four hundred thirty-four".