131244030240400 has 240 divisors, whose sum is σ = 395622436222080. Its totient is φ = 40646673100800.

The previous prime is 131244030240361. The next prime is 131244030240409. The reversal of 131244030240400 is 4042030442131.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (131244030240409) 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, 8735005 + ... + 18406204.

It is an arithmetic number, because the mean of its divisors is an integer number (1648426817592).

Almost surely, 2^{131244030240400} is an apocalyptic number.

131244030240400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131244030240400 is an abundant number, since it is smaller than the sum of its proper divisors (264378405981680).

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

131244030240400 is a wasteful number, since it uses less digits than its factorization.

131244030240400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27141402 (or 27141391 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 131244030240400 its reverse (4042030442131), we get a palindrome (135286060682531).

The spelling of 131244030240400 in words is "one hundred thirty-one trillion, two hundred forty-four billion, thirty million, two hundred forty thousand, four hundred".