1123211233019 has 2 divisors, whose sum is σ = 1123211233020. Its totient is φ = 1123211233018.

The previous prime is 1123211232973. The next prime is 1123211233021. The reversal of 1123211233019 is 9103321123211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1123211233019 - 2⁸ = 1123211232763 is a prime.

It is a super-2 number, since 2×1123211233019² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 1123211233021, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123211232982 and 1123211233000.

It is not a weakly prime, because it can be changed into another prime (1123211233519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561605616509 + 561605616510.

It is an arithmetic number, because the mean of its divisors is an integer number (561605616510).

Almost surely, 2^{1123211233019} is an apocalyptic number.

1123211233019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123211233019 is an equidigital number, since it uses as much as digits as its factorization.

1123211233019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 1123211233019 in words is "one trillion, one hundred twenty-three billion, two hundred eleven million, two hundred thirty-three thousand, nineteen".