1023123953 has 2 divisors, whose sum is σ = 1023123954. Its totient is φ = 1023123952.

The previous prime is 1023123949. The next prime is 1023123991. The reversal of 1023123953 is 3593213201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 987027889 + 36096064 = 31417^2 + 6008^2 .

It is an emirp because it is prime and its reverse (3593213201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1023123953 - 2² = 1023123949 is a prime.

It is not a weakly prime, because it can be changed into another prime (1023123923) 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, 511561976 + 511561977.

It is an arithmetic number, because the mean of its divisors is an integer number (511561977).

Almost surely, 2^1023123953 is an apocalyptic number.

It is an amenable number.

1023123953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023123953 is an equidigital number, since it uses as much as digits as its factorization.

1023123953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 1023123953 is about 31986.3088367508. The cubic root of 1023123953 is about 1007.6493229982.

The spelling of 1023123953 in words is "one billion, twenty-three million, one hundred twenty-three thousand, nine hundred fifty-three".