1031213123 has 2 divisors, whose sum is σ = 1031213124. Its totient is φ = 1031213122.

The previous prime is 1031213101. The next prime is 1031213129. The reversal of 1031213123 is 3213121301.

1031213123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1031213123 - 2¹⁶ = 1031147587 is a prime.

It is not a weakly prime, because it can be changed into another prime (1031213129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515606561 + 515606562.

It is an arithmetic number, because the mean of its divisors is an integer number (515606562).

Almost surely, 2^1031213123 is an apocalyptic number.

1031213123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031213123 is an equidigital number, since it uses as much as digits as its factorization.

1031213123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1031213123 is about 32112.5072674184. The cubic root of 1031213123 is about 1010.2979622800.

Adding to 1031213123 its reverse (3213121301), we get a palindrome (4244334424).

The spelling of 1031213123 in words is "one billion, thirty-one million, two hundred thirteen thousand, one hundred twenty-three".