102105255043 has 12 divisors (see below), whose sum is σ = 112330954120. Its totient is φ = 92740618080.

The previous prime is 102105255023. The next prime is 102105255053. The reversal of 102105255043 is 340552501201.

It is a de Polignac number, because none of the positive numbers 2^k-102105255043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102105255013) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 237105 + ... + 510322.

Almost surely, 2^102105255043 is an apocalyptic number.

102105255043 is a deficient number, since it is larger than the sum of its proper divisors (10225699077).

102105255043 is a wasteful number, since it uses less digits than its factorization.

102105255043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748578 (or 748567 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 102105255043 its reverse (340552501201), we get a palindrome (442657756244).

The spelling of 102105255043 in words is "one hundred two billion, one hundred five million, two hundred fifty-five thousand, forty-three".