213040341231240 has 32 divisors (see below), whose sum is σ = 639121023694080. Its totient is φ = 56810757661632.

The previous prime is 213040341231233. The next prime is 213040341231271. The reversal of 213040341231240 is 42132143040312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 213040341231198 and 213040341231207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887668088344 + ... + 887668088583.

It is an arithmetic number, because the mean of its divisors is an integer number (19972531990440).

Almost surely, 2^{213040341231240} is an apocalyptic number.

213040341231240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213040341231240 is an abundant number, since it is smaller than the sum of its proper divisors (426080682462840).

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

213040341231240 is a wasteful number, since it uses less digits than its factorization.

213040341231240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775336176941 (or 1775336176937 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 213040341231240 its reverse (42132143040312), we get a palindrome (255172484271552).

The spelling of 213040341231240 in words is "two hundred thirteen trillion, forty billion, three hundred forty-one million, two hundred thirty-one thousand, two hundred forty".