102235756623 has 64 divisors (see below), whose sum is σ = 188927606784. Its totient is φ = 47442672000.

The previous prime is 102235756619. The next prime is 102235756639. The reversal of 102235756623 is 326657532201.

It is not a de Polignac number, because 102235756623 - 2² = 102235756619 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102235756603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 456013 + ... + 642198.

It is an arithmetic number, because the mean of its divisors is an integer number (2951993856).

Almost surely, 2^102235756623 is an apocalyptic number.

102235756623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102235756623 is a deficient number, since it is larger than the sum of its proper divisors (86691850161).

102235756623 is a wasteful number, since it uses less digits than its factorization.

102235756623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098276.

The product of its (nonzero) digits is 453600, while the sum is 42.

It can be divided in two parts, 102235 and 756623, that added together give a palindrome (858858).

The spelling of 102235756623 in words is "one hundred two billion, two hundred thirty-five million, seven hundred fifty-six thousand, six hundred twenty-three".