1223013101 has 4 divisors (see below), whose sum is σ = 1224904032. Its totient is φ = 1221122172.

The previous prime is 1223013097. The next prime is 1223013137. The reversal of 1223013101 is 1013103221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1013103221 = 13 ⋅77931017.

It is a cyclic number.

It is not a de Polignac number, because 1223013101 - 2² = 1223013097 is a prime.

It is a super-2 number, since 2×1223013101² = 2991522090435272402, which 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 (1223013191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944495 + ... + 945788.

It is an arithmetic number, because the mean of its divisors is an integer number (306226008).

Almost surely, 2^1223013101 is an apocalyptic number.

It is an amenable number.

1223013101 is a deficient number, since it is larger than the sum of its proper divisors (1890931).

1223013101 is an equidigital number, since it uses as much as digits as its factorization.

1223013101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890930.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1223013101 is about 34971.6042097013. The cubic root of 1223013101 is about 1069.4086758041.

Adding to 1223013101 its reverse (1013103221), we get a palindrome (2236116322).

The spelling of 1223013101 in words is "one billion, two hundred twenty-three million, thirteen thousand, one hundred one".