1031230023311 has 2 divisors, whose sum is σ = 1031230023312. Its totient is φ = 1031230023310.

The previous prime is 1031230023301. The next prime is 1031230023331. The reversal of 1031230023311 is 1133200321301.

It is an a-pointer prime, because the next prime (1031230023331) can be obtained adding 1031230023311 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1031230023311 - 2⁶ = 1031230023247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031230023301) 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, 515615011655 + 515615011656.

It is an arithmetic number, because the mean of its divisors is an integer number (515615011656).

Almost surely, 2^{1031230023311} is an apocalyptic number.

1031230023311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031230023311 is an equidigital number, since it uses as much as digits as its factorization.

1031230023311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1031230023311 its reverse (1133200321301), we get a palindrome (2164430344612).

The spelling of 1031230023311 in words is "one trillion, thirty-one billion, two hundred thirty million, twenty-three thousand, three hundred eleven".