1223233123031 has 4 divisors (see below), whose sum is σ = 1262692256064. Its totient is φ = 1183773990000.

The previous prime is 1223233123027. The next prime is 1223233123039. The reversal of 1223233123031 is 1303213323221.

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 1223233123031 - 2² = 1223233123027 is a prime.

It is a super-2 number, since 2×1223233123031² (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 (1223233123039) 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, 19729566470 + ... + 19729566531.

It is an arithmetic number, because the mean of its divisors is an integer number (315673064016).

Almost surely, 2^{1223233123031} is an apocalyptic number.

1223233123031 is a deficient number, since it is larger than the sum of its proper divisors (39459133033).

1223233123031 is an equidigital number, since it uses as much as digits as its factorization.

1223233123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39459133032.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1223233123031 its reverse (1303213323221), we get a palindrome (2526446446252).

The spelling of 1223233123031 in words is "one trillion, two hundred twenty-three billion, two hundred thirty-three million, one hundred twenty-three thousand, thirty-one".