131120321203 has 4 divisors (see below), whose sum is σ = 138021390760. Its totient is φ = 124219251648.

The previous prime is 131120321183. The next prime is 131120321221. The reversal of 131120321203 is 302123021131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131120321203 - 2⁹ = 131120320691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 6901069537 = 131120321203 / (1 + 3 + 1 + 1 + 2 + 0 + 3 + 2 + 1 + 2 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131120321263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3450534750 + ... + 3450534787.

It is an arithmetic number, because the mean of its divisors is an integer number (34505347690).

Almost surely, 2^131120321203 is an apocalyptic number.

131120321203 is a deficient number, since it is larger than the sum of its proper divisors (6901069557).

131120321203 is an equidigital number, since it uses as much as digits as its factorization.

131120321203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6901069556.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131120321203 its reverse (302123021131), we get a palindrome (433243342334).

The spelling of 131120321203 in words is "one hundred thirty-one billion, one hundred twenty million, three hundred twenty-one thousand, two hundred three".