213545032130540 has 48 divisors (see below), whose sum is σ = 489213461800224. Its totient is φ = 77652547468800.

The previous prime is 213545032130503. The next prime is 213545032130567. The reversal of 213545032130540 is 45031230545312.

It is a junction number, because it is equal to n+sod(n) for n = 213545032130494 and 213545032130503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112876010 + ... + 114752270.

It is an arithmetic number, because the mean of its divisors is an integer number (10191947120838).

Almost surely, 2^{213545032130540} is an apocalyptic number.

213545032130540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213545032130540 is an abundant number, since it is smaller than the sum of its proper divisors (275668429669684).

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

213545032130540 is a wasteful number, since it uses less digits than its factorization.

213545032130540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393618 (or 2393616 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 213545032130540 its reverse (45031230545312), we get a palindrome (258576262675852).

The spelling of 213545032130540 in words is "two hundred thirteen trillion, five hundred forty-five billion, thirty-two million, one hundred thirty thousand, five hundred forty".