40543401351023 has 4 divisors (see below), whose sum is σ = 41486271149928. Its totient is φ = 39600531552120.

The previous prime is 40543401350993. The next prime is 40543401351041. The reversal of 40543401351023 is 32015310434504.

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 40543401351023 - 2²⁴ = 40543384573807 is a prime.

It is a super-2 number, since 2×40543401351023² (a number of 28 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 (40543401351083) 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, 471434899388 + ... + 471434899473.

It is an arithmetic number, because the mean of its divisors is an integer number (10371567787482).

Almost surely, 2^{40543401351023} is an apocalyptic number.

40543401351023 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40543401351023 is a deficient number, since it is larger than the sum of its proper divisors (942869798905).

40543401351023 is an equidigital number, since it uses as much as digits as its factorization.

40543401351023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942869798904.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 40543401351023 its reverse (32015310434504), we get a palindrome (72558711785527).

The spelling of 40543401351023 in words is "forty trillion, five hundred forty-three billion, four hundred one million, three hundred fifty-one thousand, twenty-three".