2011216007231 has 4 divisors (see below), whose sum is σ = 2011230776712. Its totient is φ = 2011201237752.

The previous prime is 2011216007179. The next prime is 2011216007249. The reversal of 2011216007231 is 1327006121102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011216007231 is a prime.

It is a super-2 number, since 2×2011216007231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011216007231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011216007261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7178561 + ... + 7453466.

It is an arithmetic number, because the mean of its divisors is an integer number (502807694178).

Almost surely, 2^{2011216007231} is an apocalyptic number.

2011216007231 is a deficient number, since it is larger than the sum of its proper divisors (14769481).

2011216007231 is a wasteful number, since it uses less digits than its factorization.

2011216007231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14769480.

The product of its (nonzero) digits is 1008, while the sum is 26.

The spelling of 2011216007231 in words is "two trillion, eleven billion, two hundred sixteen million, seven thousand, two hundred thirty-one".