131200243403 has 2 divisors, whose sum is σ = 131200243404. Its totient is φ = 131200243402.

The previous prime is 131200243399. The next prime is 131200243429. The reversal of 131200243403 is 304342002131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131200243403 - 2² = 131200243399 is a prime.

It is not a weakly prime, because it can be changed into another prime (131200243703) 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 as a sum of consecutive naturals, namely, 65600121701 + 65600121702.

It is an arithmetic number, because the mean of its divisors is an integer number (65600121702).

Almost surely, 2^131200243403 is an apocalyptic number.

131200243403 is a deficient number, since it is larger than the sum of its proper divisors (1).

131200243403 is an equidigital number, since it uses as much as digits as its factorization.

131200243403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 131200243403 its reverse (304342002131), we get a palindrome (435542245534).

The spelling of 131200243403 in words is "one hundred thirty-one billion, two hundred million, two hundred forty-three thousand, four hundred three".