1123211232973 has 2 divisors, whose sum is σ = 1123211232974. Its totient is φ = 1123211232972.

The previous prime is 1123211232971. The next prime is 1123211233019. The reversal of 1123211232973 is 3792321123211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1048580096004 + 74631136969 = 1024002^2 + 273187^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123211232973 - 2¹ = 1123211232971 is a prime.

It is a super-3 number, since 3×1123211232973³ (a number of 37 digits) contains 333 as substring.

Together with 1123211232971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123211232971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561605616486 + 561605616487.

It is an arithmetic number, because the mean of its divisors is an integer number (561605616487).

Almost surely, 2^{1123211232973} is an apocalyptic number.

It is an amenable number.

1123211232973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123211232973 is an equidigital number, since it uses as much as digits as its factorization.

1123211232973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The spelling of 1123211232973 in words is "one trillion, one hundred twenty-three billion, two hundred eleven million, two hundred thirty-two thousand, nine hundred seventy-three".