102431403502 has 4 divisors (see below), whose sum is σ = 153647105256. Its totient is φ = 51215701750.

The previous prime is 102431403499. The next prime is 102431403517. The reversal of 102431403502 is 205304134201.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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, 25607850874 + ... + 25607850877.

It is an arithmetic number, because the mean of its divisors is an integer number (38411776314).

Almost surely, 2^102431403502 is an apocalyptic number.

102431403502 is a deficient number, since it is larger than the sum of its proper divisors (51215701754).

102431403502 is an equidigital number, since it uses as much as digits as its factorization.

102431403502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51215701753.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 102431403502 its reverse (205304134201), we get a palindrome (307735537703).

The spelling of 102431403502 in words is "one hundred two billion, four hundred thirty-one million, four hundred three thousand, five hundred two".