2231101001011 has 4 divisors (see below), whose sum is σ = 2231268602472. Its totient is φ = 2230933399552.

The previous prime is 2231101001009. The next prime is 2231101001057. The reversal of 2231101001011 is 1101001011322.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2231101001011 - 2¹ = 2231101001009 is a prime.

It is a super-3 number, since 3×2231101001011³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231101000982 and 2231101001000.

It is not an unprimeable number, because it can be changed into a prime (2231101001071) 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, 83780761 + ... + 83807386.

It is an arithmetic number, because the mean of its divisors is an integer number (557817150618).

Almost surely, 2^{2231101001011} is an apocalyptic number.

2231101001011 is a deficient number, since it is larger than the sum of its proper divisors (167601461).

2231101001011 is a wasteful number, since it uses less digits than its factorization.

2231101001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167601460.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 2231101001011 its reverse (1101001011322), we get a palindrome (3332102012333).

The spelling of 2231101001011 in words is "two trillion, two hundred thirty-one billion, one hundred one million, one thousand, eleven".