102431420011 has 4 divisors (see below), whose sum is σ = 107822547400. Its totient is φ = 97040292624.

The previous prime is 102431419957. The next prime is 102431420111. The reversal of 102431420011 is 110024134201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110024134201 = 853 ⋅128984917.

It is a cyclic number.

It is not a de Polignac number, because 102431420011 - 2⁹ = 102431419499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 5391127369 = 102431420011 / (1 + 0 + 2 + 4 + 3 + 1 + 4 + 2 + 0 + 0 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102431420111) 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 3 ways as a sum of consecutive naturals, for example, 2695563666 + ... + 2695563703.

It is an arithmetic number, because the mean of its divisors is an integer number (26955636850).

Almost surely, 2^102431420011 is an apocalyptic number.

102431420011 is a deficient number, since it is larger than the sum of its proper divisors (5391127389).

102431420011 is an equidigital number, since it uses as much as digits as its factorization.

102431420011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5391127388.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 102431420011 its reverse (110024134201), we get a palindrome (212455554212).

The spelling of 102431420011 in words is "one hundred two billion, four hundred thirty-one million, four hundred twenty thousand, eleven".