1123220100231 has 32 divisors (see below), whose sum is σ = 1691010025920. Its totient is φ = 736769037312.

The previous prime is 1123220100221. The next prime is 1123220100263. The reversal of 1123220100231 is 1320010223211.

1123220100231 is a `hidden beast` number, since 1 + 1 + 232 + 201 + 0 + 0 + 231 = 666.

It is not a de Polignac number, because 1123220100231 - 2⁷ = 1123220100103 is a prime.

It is a super-2 number, since 2×1123220100231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123220100221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 925620 + ... + 1761593.

It is an arithmetic number, because the mean of its divisors is an integer number (52844063310).

Almost surely, 2^{1123220100231} is an apocalyptic number.

1123220100231 is a deficient number, since it is larger than the sum of its proper divisors (567789925689).

1123220100231 is a wasteful number, since it uses less digits than its factorization.

1123220100231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687472 (or 2687466 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1123220100231 its reverse (1320010223211), we get a palindrome (2443230323442).

The spelling of 1123220100231 in words is "one trillion, one hundred twenty-three billion, two hundred twenty million, one hundred thousand, two hundred thirty-one".