2113233120540 has 288 divisors, whose sum is σ = 7155231842304. Its totient is φ = 502349322240.

The previous prime is 2113233120469. The next prime is 2113233120541. The reversal of 2113233120540 is 450213323112.

2113233120540 is a `hidden beast` number, since 2 + 113 + 2 + 3 + 3 + 1 + 2 + 0 + 540 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113233120541) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4221427 + ... + 4695413.

It is an arithmetic number, because the mean of its divisors is an integer number (24844555008).

Almost surely, 2^{2113233120540} is an apocalyptic number.

2113233120540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113233120540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3577615921152).

2113233120540 is an abundant number, since it is smaller than the sum of its proper divisors (5041998721764).

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

2113233120540 is a wasteful number, since it uses less digits than its factorization.

2113233120540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474097 (or 474092 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 2113233120540 its reverse (450213323112), we get a palindrome (2563446443652).

The spelling of 2113233120540 in words is "two trillion, one hundred thirteen billion, two hundred thirty-three million, one hundred twenty thousand, five hundred forty".