1293228031 has 2 divisors, whose sum is σ = 1293228032. Its totient is φ = 1293228030.

The previous prime is 1293228019. The next prime is 1293228043. The reversal of 1293228031 is 1308223921.

It is a balanced prime because it is at equal distance from previous prime (1293228019) and next prime (1293228043).

It is a cyclic number.

It is not a de Polignac number, because 1293228031 - 2²¹ = 1291130879 is a prime.

It is a super-2 number, since 2×1293228031² = 3344877480328273922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1293227984 and 1293228002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1293228011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646614015 + 646614016.

It is an arithmetic number, because the mean of its divisors is an integer number (646614016).

Almost surely, 2^1293228031 is an apocalyptic number.

1293228031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1293228031 is an equidigital number, since it uses as much as digits as its factorization.

1293228031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1293228031 is about 35961.4798221653. The cubic root of 1293228031 is about 1089.4944857330.

The spelling of 1293228031 in words is "one billion, two hundred ninety-three million, two hundred twenty-eight thousand, thirty-one".