131320201100023 has 4 divisors (see below), whose sum is σ = 141421755030808. Its totient is φ = 121218647169240.

The previous prime is 131320201100017. The next prime is 131320201100029. The reversal of 131320201100023 is 320001102023131.

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

It is an interprime number because it is at equal distance from previous prime (131320201100017) and next prime (131320201100029).

It is a cyclic number.

It is not a de Polignac number, because 131320201100023 - 2²¹ = 131320199002871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320201100029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050776965373 + ... + 5050776965398.

It is an arithmetic number, because the mean of its divisors is an integer number (35355438757702).

Almost surely, 2^{131320201100023} is an apocalyptic number.

131320201100023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131320201100023 is a deficient number, since it is larger than the sum of its proper divisors (10101553930785).

131320201100023 is a wasteful number, since it uses less digits than its factorization.

131320201100023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101553930784.

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

Adding to 131320201100023 its reverse (320001102023131), we get a palindrome (451321303123154).

The spelling of 131320201100023 in words is "one hundred thirty-one trillion, three hundred twenty billion, two hundred one million, one hundred thousand, twenty-three".