11312233123 has 2 divisors, whose sum is σ = 11312233124. Its totient is φ = 11312233122.

The previous prime is 11312233111. The next prime is 11312233139. The reversal of 11312233123 is 32133221311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11312233123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11312233094 and 11312233103.

It is not a weakly prime, because it can be changed into another prime (11312233103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656116561 + 5656116562.

It is an arithmetic number, because the mean of its divisors is an integer number (5656116562).

Almost surely, 2^11312233123 is an apocalyptic number.

11312233123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11312233123 is an equidigital number, since it uses as much as digits as its factorization.

11312233123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

Adding to 11312233123 its reverse (32133221311), we get a palindrome (43445454434).

The spelling of 11312233123 in words is "eleven billion, three hundred twelve million, two hundred thirty-three thousand, one hundred twenty-three".