23140435213236 has 192 divisors, whose sum is σ = 60626232705024. Its totient is φ = 6809480832000.

The previous prime is 23140435213223. The next prime is 23140435213243. The reversal of 23140435213236 is 63231253404132.

It is a junction number, because it is equal to n+sod(n) for n = 23140435213194 and 23140435213203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2003321661 + ... + 2003333211.

It is an arithmetic number, because the mean of its divisors is an integer number (315761628672).

Almost surely, 2^{23140435213236} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23140435213236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30313116352512).

23140435213236 is an abundant number, since it is smaller than the sum of its proper divisors (37485797491788).

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

23140435213236 is a wasteful number, since it uses less digits than its factorization.

23140435213236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14110 (or 14108 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 39.

Adding to 23140435213236 its reverse (63231253404132), we get a palindrome (86371688617368).

The spelling of 23140435213236 in words is "twenty-three trillion, one hundred forty billion, four hundred thirty-five million, two hundred thirteen thousand, two hundred thirty-six".