131361620250 has 128 divisors (see below), whose sum is σ = 379852641792. Its totient is φ = 29614118400.

The previous prime is 131361620233. The next prime is 131361620287. The reversal of 131361620250 is 52026163131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 211872 + ... + 554628.

It is an arithmetic number, because the mean of its divisors is an integer number (2967598764).

Almost surely, 2^131361620250 is an apocalyptic number.

131361620250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131361620250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189926320896).

131361620250 is an abundant number, since it is smaller than the sum of its proper divisors (248491021542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131361620250 is a wasteful number, since it uses less digits than its factorization.

131361620250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342857 (or 342847 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 131361620250 its reverse (52026163131), we get a palindrome (183387783381).

The spelling of 131361620250 in words is "one hundred thirty-one billion, three hundred sixty-one million, six hundred twenty thousand, two hundred fifty".