2231123977 has 2 divisors, whose sum is σ = 2231123978. Its totient is φ = 2231123976.

The previous prime is 2231123953. The next prime is 2231124023. The reversal of 2231123977 is 7793211322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1975891401 + 255232576 = 44451^2 + 15976^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231123977 - 2¹⁹ = 2230599689 is a prime.

It is a super-3 number, since 3×2231123977³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2231123927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115561988 + 1115561989.

It is an arithmetic number, because the mean of its divisors is an integer number (1115561989).

Almost surely, 2^2231123977 is an apocalyptic number.

It is an amenable number.

2231123977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231123977 is an equidigital number, since it uses as much as digits as its factorization.

2231123977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 37.

The square root of 2231123977 is about 47234.7750815011. The cubic root of 2231123977 is about 1306.6960184979.

The spelling of 2231123977 in words is "two billion, two hundred thirty-one million, one hundred twenty-three thousand, nine hundred seventy-seven".