131123603620 has 48 divisors (see below), whose sum is σ = 275957337600. Its totient is φ = 52335713664.

The previous prime is 131123603603. The next prime is 131123603627. The reversal of 131123603620 is 26306321131.

It is not an unprimeable number, because it can be changed into a prime (131123603627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21149281 + ... + 21155479.

It is an arithmetic number, because the mean of its divisors is an integer number (5749111200).

Almost surely, 2^131123603620 is an apocalyptic number.

131123603620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131123603620 is an abundant number, since it is smaller than the sum of its proper divisors (144833733980).

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

131123603620 is a wasteful number, since it uses less digits than its factorization.

131123603620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8332 (or 8330 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 131123603620 its reverse (26306321131), we get a palindrome (157429924751).

The spelling of 131123603620 in words is "one hundred thirty-one billion, one hundred twenty-three million, six hundred three thousand, six hundred twenty".