2011031211320 has 16 divisors (see below), whose sum is σ = 4524820225560. Its totient is φ = 804412484512.

The previous prime is 2011031211317. The next prime is 2011031211359. The reversal of 2011031211320 is 231121301102.

It is a super-2 number, since 2×2011031211320² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25137890102 + ... + 25137890181.

Almost surely, 2^{2011031211320} is an apocalyptic number.

2011031211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011031211320 is an abundant number, since it is smaller than the sum of its proper divisors (2513789014240).

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

2011031211320 is a wasteful number, since it uses less digits than its factorization.

2011031211320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50275780294 (or 50275780290 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2011031211320 its reverse (231121301102), we get a palindrome (2242152512422).

The spelling of 2011031211320 in words is "two trillion, eleven billion, thirty-one million, two hundred eleven thousand, three hundred twenty".