1023109993 has 2 divisors, whose sum is σ = 1023109994. Its totient is φ = 1023109992.

The previous prime is 1023109979. The next prime is 1023110029. The reversal of 1023109993 is 3999013201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1019077929 + 4032064 = 31923^2 + 2008^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023109993 - 2⁹ = 1023109481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1023109693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511554996 + 511554997.

It is an arithmetic number, because the mean of its divisors is an integer number (511554997).

Almost surely, 2^1023109993 is an apocalyptic number.

It is an amenable number.

1023109993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023109993 is an equidigital number, since it uses as much as digits as its factorization.

1023109993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 1023109993 is about 31986.0906176419. The cubic root of 1023109993 is about 1007.6447400252.

The spelling of 1023109993 in words is "one billion, twenty-three million, one hundred nine thousand, nine hundred ninety-three".