20231322115747 has 4 divisors (see below), whose sum is σ = 20234797696576. Its totient is φ = 20227846534920.

The previous prime is 20231322115727. The next prime is 20231322115757. The reversal of 20231322115747 is 74751122313202.

It is a happy number.

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-20231322115747 is a prime.

It is a super-2 number, since 2×20231322115747² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20231322115727) 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, 1737781683 + ... + 1737793324.

It is an arithmetic number, because the mean of its divisors is an integer number (5058699424144).

Almost surely, 2^{20231322115747} is an apocalyptic number.

20231322115747 is a deficient number, since it is larger than the sum of its proper divisors (3475580829).

20231322115747 is an equidigital number, since it uses as much as digits as its factorization.

20231322115747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475580828.

The product of its (nonzero) digits is 141120, while the sum is 40.

Adding to 20231322115747 its reverse (74751122313202), we get a palindrome (94982444428949).

The spelling of 20231322115747 in words is "twenty trillion, two hundred thirty-one billion, three hundred twenty-two million, one hundred fifteen thousand, seven hundred forty-seven".