20010211133240 has 32 divisors (see below), whose sum is σ = 45023109359760. Its totient is φ = 8004060576000.

The previous prime is 20010211133161. The next prime is 20010211133291. The reversal of 20010211133240 is 4233111201002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19846100 + ... + 20829980.

Almost surely, 2^{20010211133240} is an apocalyptic number.

20010211133240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010211133240 is an abundant number, since it is smaller than the sum of its proper divisors (25012898226520).

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

20010211133240 is a wasteful number, since it uses less digits than its factorization.

20010211133240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492343 (or 1492339 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20010211133240 its reverse (4233111201002), we get a palindrome (24243322334242).

The spelling of 20010211133240 in words is "twenty trillion, ten billion, two hundred eleven million, one hundred thirty-three thousand, two hundred forty".