1223131101 has 8 divisors (see below), whose sum is σ = 1633530624. Its totient is φ = 814076160.

The previous prime is 1223131081. The next prime is 1223131127. The reversal of 1223131101 is 1011313221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223131101 - 2¹⁸ = 1222868957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223131141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334020 + ... + 337661.

It is an arithmetic number, because the mean of its divisors is an integer number (204191328).

Almost surely, 2^1223131101 is an apocalyptic number.

It is an amenable number.

1223131101 is a deficient number, since it is larger than the sum of its proper divisors (410399523).

1223131101 is an equidigital number, since it uses as much as digits as its factorization.

1223131101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672291.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1223131101 is about 34973.2912520397. The cubic root of 1223131101 is about 1069.4430679583.

Adding to 1223131101 its reverse (1011313221), we get a palindrome (2234444322).

The spelling of 1223131101 in words is "one billion, two hundred twenty-three million, one hundred thirty-one thousand, one hundred one".