1011301322231 has 4 divisors (see below), whose sum is σ = 1011303340512. Its totient is φ = 1011299303952.

The previous prime is 1011301322221. The next prime is 1011301322267. The reversal of 1011301322231 is 1322231031101.

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 1011301322231 - 2¹⁸ = 1011301060087 is a prime.

It is a super-2 number, since 2×1011301322231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011301322221) 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, 378515 + ... + 1471691.

It is an arithmetic number, because the mean of its divisors is an integer number (252825835128).

Almost surely, 2^{1011301322231} is an apocalyptic number.

1011301322231 is a deficient number, since it is larger than the sum of its proper divisors (2018281).

1011301322231 is an equidigital number, since it uses as much as digits as its factorization.

1011301322231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018280.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1011301322231 its reverse (1322231031101), we get a palindrome (2333532353332).

The spelling of 1011301322231 in words is "one trillion, eleven billion, three hundred one million, three hundred twenty-two thousand, two hundred thirty-one".