131440021301023 has 4 divisors (see below), whose sum is σ = 131440044615568. Its totient is φ = 131439997986480.

The previous prime is 131440021300963. The next prime is 131440021301041. The reversal of 131440021301023 is 320103120044131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131440021301023 is a prime.

It is a super-2 number, since 2×131440021301023² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131440021301063) 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, 2663683 + ... + 16430923.

It is an arithmetic number, because the mean of its divisors is an integer number (32860011153892).

Almost surely, 2^{131440021301023} is an apocalyptic number.

131440021301023 is a deficient number, since it is larger than the sum of its proper divisors (23314545).

131440021301023 is an equidigital number, since it uses as much as digits as its factorization.

131440021301023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23314544.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 131440021301023 its reverse (320103120044131), we get a palindrome (451543141345154).

The spelling of 131440021301023 in words is "one hundred thirty-one trillion, four hundred forty billion, twenty-one million, three hundred one thousand, twenty-three".