131401303400 has 24 divisors (see below), whose sum is σ = 305508030870. Its totient is φ = 52560521280.

The previous prime is 131401303379. The next prime is 131401303403. The reversal of 131401303400 is 4303104131.

It can be written as a sum of positive squares in 3 ways, for example, as 102939588964 + 28461714436 = 320842^2 + 168706^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (131401303403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 328503059 + ... + 328503458.

Almost surely, 2^131401303400 is an apocalyptic number.

131401303400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131401303400 is an abundant number, since it is smaller than the sum of its proper divisors (174106727470).

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

131401303400 is a wasteful number, since it uses less digits than its factorization.

131401303400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657006533 (or 657006524 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131401303400 its reverse (4303104131), we get a palindrome (135704407531).

The spelling of 131401303400 in words is "one hundred thirty-one billion, four hundred one million, three hundred three thousand, four hundred".