1223134100231 has 16 divisors (see below), whose sum is σ = 1282751004960. Its totient is φ = 1164682552320.

The previous prime is 1223134100159. The next prime is 1223134100233. The reversal of 1223134100231 is 1320014313221.

It is a cyclic number.

It is not a de Polignac number, because 1223134100231 - 2¹⁰ = 1223134099207 is a prime.

It is a super-2 number, since 2×1223134100231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223134100197 and 1223134100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223134100233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48595856 + ... + 48621018.

It is an arithmetic number, because the mean of its divisors is an integer number (80171937810).

Almost surely, 2^{1223134100231} is an apocalyptic number.

1223134100231 is a deficient number, since it is larger than the sum of its proper divisors (59616904729).

1223134100231 is a wasteful number, since it uses less digits than its factorization.

1223134100231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48226.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1223134100231 its reverse (1320014313221), we get a palindrome (2543148413452).

The spelling of 1223134100231 in words is "one trillion, two hundred twenty-three billion, one hundred thirty-four million, one hundred thousand, two hundred thirty-one".