23044140143240 has 16 divisors (see below), whose sum is σ = 51849315322380. Its totient is φ = 9217656057280.

The previous prime is 23044140143119. The next prime is 23044140143257. The reversal of 23044140143240 is 4234104144032.

It can be written as a sum of positive squares in 2 ways, for example, as 18589566879844 + 4454573263396 = 4311562^2 + 2110586^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23044140143197 and 23044140143206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288051751751 + ... + 288051751830.

Almost surely, 2^{23044140143240} is an apocalyptic number.

23044140143240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23044140143240 is an abundant number, since it is smaller than the sum of its proper divisors (28805175179140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23044140143240 is a wasteful number, since it uses less digits than its factorization.

23044140143240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576103503592 (or 576103503588 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 23044140143240 its reverse (4234104144032), we get a palindrome (27278244287272).

The spelling of 23044140143240 in words is "twenty-three trillion, forty-four billion, one hundred forty million, one hundred forty-three thousand, two hundred forty".