131323020650 has 96 divisors (see below), whose sum is σ = 257830604928. Its totient is φ = 49666003200.

The previous prime is 131323020641. The next prime is 131323020659. The reversal of 131323020650 is 56020323131.

It is an interprime number because it is at equal distance from previous prime (131323020641) and next prime (131323020659).

It is not an unprimeable number, because it can be changed into a prime (131323020659) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75428780 + ... + 75430520.

It is an arithmetic number, because the mean of its divisors is an integer number (2685735468).

Almost surely, 2^131323020650 is an apocalyptic number.

131323020650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131323020650 is a deficient number, since it is larger than the sum of its proper divisors (126507584278).

131323020650 is a wasteful number, since it uses less digits than its factorization.

131323020650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496 (or 2491 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 131323020650 its reverse (56020323131), we get a palindrome (187343343781).

The spelling of 131323020650 in words is "one hundred thirty-one billion, three hundred twenty-three million, twenty thousand, six hundred fifty".