102320403431 has 2 divisors, whose sum is σ = 102320403432. Its totient is φ = 102320403430.

The previous prime is 102320403413. The next prime is 102320403457. The reversal of 102320403431 is 134304023201.

Together with previous prime (102320403413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102320403431 - 2¹⁰ = 102320402407 is a prime.

It is a super-2 number, since 2×102320403431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102320403397 and 102320403406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102320403491) 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 as a sum of consecutive naturals, namely, 51160201715 + 51160201716.

It is an arithmetic number, because the mean of its divisors is an integer number (51160201716).

Almost surely, 2^102320403431 is an apocalyptic number.

102320403431 is a deficient number, since it is larger than the sum of its proper divisors (1).

102320403431 is an equidigital number, since it uses as much as digits as its factorization.

102320403431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 102320403431 its reverse (134304023201), we get a palindrome (236624426632).

The spelling of 102320403431 in words is "one hundred two billion, three hundred twenty million, four hundred three thousand, four hundred thirty-one".