102443533111 has 32 divisors (see below), whose sum is σ = 114308333568. Its totient is φ = 91313671680.

The previous prime is 102443533109. The next prime is 102443533133. The reversal of 102443533111 is 111335344201.

It is a cyclic number.

It is not a de Polignac number, because 102443533111 - 2¹ = 102443533109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102443533111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102443233111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28352341 + ... + 28355953.

It is an arithmetic number, because the mean of its divisors is an integer number (3572135424).

Almost surely, 2^102443533111 is an apocalyptic number.

102443533111 is a deficient number, since it is larger than the sum of its proper divisors (11864800457).

102443533111 is a wasteful number, since it uses less digits than its factorization.

102443533111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 102443533111 its reverse (111335344201), we get a palindrome (213778877312).

The spelling of 102443533111 in words is "one hundred two billion, four hundred forty-three million, five hundred thirty-three thousand, one hundred eleven".