131203401 has 8 divisors (see below), whose sum is σ = 199929024. Its totient is φ = 74973360.

The previous prime is 131203381. The next prime is 131203451. The reversal of 131203401 is 104302131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131203401 - 2¹⁸ = 130941257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131203451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3123870 + ... + 3123911.

It is an arithmetic number, because the mean of its divisors is an integer number (24991128).

Almost surely, 2^131203401 is an apocalyptic number.

It is an amenable number.

131203401 is a deficient number, since it is larger than the sum of its proper divisors (68725623).

131203401 is an equidigital number, since it uses as much as digits as its factorization.

131203401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6247791.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131203401 is about 11454.4053097487. The cubic root of 131203401 is about 508.1380277278.

Adding to 131203401 its reverse (104302131), we get a palindrome (235505532).

The spelling of 131203401 in words is "one hundred thirty-one million, two hundred three thousand, four hundred one".