102105236431 has 8 divisors (see below), whose sum is σ = 111395965824. Its totient is φ = 92815912920.

The previous prime is 102105236417. The next prime is 102105236449. The reversal of 102105236431 is 134632501201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102105236431 - 2⁵ = 102105236399 is a prime.

It is a super-2 number, since 2×102105236431² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102105236431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102105236411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196641 + ... + 492826.

It is an arithmetic number, because the mean of its divisors is an integer number (13924495728).

Almost surely, 2^102105236431 is an apocalyptic number.

102105236431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102105236431 is a deficient number, since it is larger than the sum of its proper divisors (9290729393).

102105236431 is a wasteful number, since it uses less digits than its factorization.

102105236431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702941.

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

Adding to 102105236431 its reverse (134632501201), we get a palindrome (236737737632).

The spelling of 102105236431 in words is "one hundred two billion, one hundred five million, two hundred thirty-six thousand, four hundred thirty-one".