1023200011993 has 2 divisors, whose sum is σ = 1023200011994. Its totient is φ = 1023200011992.

The previous prime is 1023200011991. The next prime is 1023200012041. The reversal of 1023200011993 is 3991100023201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 853169963584 + 170030048409 = 923672^2 + 412347^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023200011993 - 2¹ = 1023200011991 is a prime.

Together with 1023200011991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1023200011991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511600005996 + 511600005997.

It is an arithmetic number, because the mean of its divisors is an integer number (511600005997).

Almost surely, 2^{1023200011993} is an apocalyptic number.

It is an amenable number.

1023200011993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023200011993 is an equidigital number, since it uses as much as digits as its factorization.

1023200011993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The spelling of 1023200011993 in words is "one trillion, twenty-three billion, two hundred million, eleven thousand, nine hundred ninety-three".