102441021550 has 48 divisors (see below), whose sum is σ = 217790881920. Its totient is φ = 35117710560.

The previous prime is 102441021533. The next prime is 102441021581. The reversal of 102441021550 is 55120144201.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3199521 + ... + 3231379.

It is an arithmetic number, because the mean of its divisors is an integer number (4537310040).

Almost surely, 2^102441021550 is an apocalyptic number.

102441021550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102441021550 is an abundant number, since it is smaller than the sum of its proper divisors (115349860370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102441021550 is a wasteful number, since it uses less digits than its factorization.

102441021550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41065 (or 41060 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 102441021550 its reverse (55120144201), we get a palindrome (157561165751).

The spelling of 102441021550 in words is "one hundred two billion, four hundred forty-one million, twenty-one thousand, five hundred fifty".