131401231310220 has 96 divisors (see below), whose sum is σ = 371320345851840. Its totient is φ = 34716851389440.

The previous prime is 131401231310207. The next prime is 131401231310233. The reversal of 131401231310220 is 22013132104131.

It is an interprime number because it is at equal distance from previous prime (131401231310207) and next prime (131401231310233).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114355750 + ... + 115499090.

It is an arithmetic number, because the mean of its divisors is an integer number (3867920269290).

Almost surely, 2^{131401231310220} is an apocalyptic number.

131401231310220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131401231310220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185660172925920).

131401231310220 is an abundant number, since it is smaller than the sum of its proper divisors (239919114541620).

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

131401231310220 is a wasteful number, since it uses less digits than its factorization.

131401231310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161035 (or 1161033 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 131401231310220 its reverse (22013132104131), we get a palindrome (153414363414351).

The spelling of 131401231310220 in words is "one hundred thirty-one trillion, four hundred one billion, two hundred thirty-one million, three hundred ten thousand, two hundred twenty".