11012311032231 has 4 divisors (see below), whose sum is σ = 14683081376312. Its totient is φ = 7341540688152.

The previous prime is 11012311032227. The next prime is 11012311032269. The reversal of 11012311032231 is 13223011321011.

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

It is not a de Polignac number, because 11012311032231 - 2² = 11012311032227 is a prime.

It is a super-2 number, since 2×11012311032231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012311032198 and 11012311032207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012311032221) 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, 1835385172036 + ... + 1835385172041.

It is an arithmetic number, because the mean of its divisors is an integer number (3670770344078).

Almost surely, 2^{11012311032231} is an apocalyptic number.

11012311032231 is a deficient number, since it is larger than the sum of its proper divisors (3670770344081).

11012311032231 is an equidigital number, since it uses as much as digits as its factorization.

11012311032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670770344080.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 11012311032231 its reverse (13223011321011), we get a palindrome (24235322353242).

The spelling of 11012311032231 in words is "eleven trillion, twelve billion, three hundred eleven million, thirty-two thousand, two hundred thirty-one".