102244543444451 has 4 divisors (see below), whose sum is σ = 102244853984832. Its totient is φ = 102244232904072.

The previous prime is 102244543444403. The next prime is 102244543444469. The reversal of 102244543444451 is 154444345442201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102244543444451 - 2⁶ = 102244543444387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102244543444396 and 102244543444405.

It is not an unprimeable number, because it can be changed into a prime (102244543444481) 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, 154775795 + ... + 155434988.

It is an arithmetic number, because the mean of its divisors is an integer number (25561213496208).

Almost surely, 2^{102244543444451} is an apocalyptic number.

102244543444451 is a deficient number, since it is larger than the sum of its proper divisors (310540381).

102244543444451 is an equidigital number, since it uses as much as digits as its factorization.

102244543444451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310540380.

The product of its (nonzero) digits is 4915200, while the sum is 47.

Adding to 102244543444451 its reverse (154444345442201), we get a palindrome (256688888886652).

The spelling of 102244543444451 in words is "one hundred two trillion, two hundred forty-four billion, five hundred forty-three million, four hundred forty-four thousand, four hundred fifty-one".