131203101 has 16 divisors (see below), whose sum is σ = 178536960. Its totient is φ = 85685040.

The previous prime is 131203097. The next prime is 131203103. The reversal of 131203101 is 101302131.

It is not a de Polignac number, because 131203101 - 2² = 131203097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131203103) 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 15 ways as a sum of consecutive naturals, for example, 32830 + ... + 36608.

It is an arithmetic number, because the mean of its divisors is an integer number (11158560).

Almost surely, 2^131203101 is an apocalyptic number.

It is an amenable number.

131203101 is a deficient number, since it is larger than the sum of its proper divisors (47333859).

131203101 is a wasteful number, since it uses less digits than its factorization.

131203101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 131203101 is about 11454.3922143429. The cubic root of 131203101 is about 508.1376404372.

Adding to 131203101 its reverse (101302131), we get a palindrome (232505232).

The spelling of 131203101 in words is "one hundred thirty-one million, two hundred three thousand, one hundred one".