23431032323444 has 24 divisors (see below), whose sum is σ = 41521309610088. Its totient is φ = 11568422966400.

The previous prime is 23431032323441. The next prime is 23431032323453. The reversal of 23431032323444 is 44432323013432.

It can be written as a sum of positive squares in 4 ways, for example, as 11373553900900 + 12057478422544 = 3372470^2 + 3472388^2 .

It is a super-2 number, since 2×23431032323444² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23431032323398 and 23431032323407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431032323441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77594087 + ... + 77895470.

It is an arithmetic number, because the mean of its divisors is an integer number (1730054567087).

Almost surely, 2^{23431032323444} is an apocalyptic number.

It is an amenable number.

23431032323444 is a deficient number, since it is larger than the sum of its proper divisors (18090277286644).

23431032323444 is a wasteful number, since it uses less digits than its factorization.

23431032323444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155490035 (or 155490033 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 38.

Adding to 23431032323444 its reverse (44432323013432), we get a palindrome (67863355336876).

The spelling of 23431032323444 in words is "twenty-three trillion, four hundred thirty-one billion, thirty-two million, three hundred twenty-three thousand, four hundred forty-four".