102044041040 has 40 divisors (see below), whose sum is σ = 239601448008. Its totient is φ = 40413478400.

The previous prime is 102044041039. The next prime is 102044041061. The reversal of 102044041040 is 40140440201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22054626064 + 79989414976 = 148508^2 + 282824^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6306527 + ... + 6322686.

Almost surely, 2^102044041040 is an apocalyptic number.

102044041040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102044041040 is an abundant number, since it is smaller than the sum of its proper divisors (137557406968).

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

102044041040 is a wasteful number, since it uses less digits than its factorization.

102044041040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12629327 (or 12629321 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 102044041040 its reverse (40140440201), we get a palindrome (142184481241).

The spelling of 102044041040 in words is "one hundred two billion, forty-four million, forty-one thousand, forty".