1230201993 has 16 divisors (see below), whose sum is σ = 1652353920. Its totient is φ = 814106496.

The previous prime is 1230201919. The next prime is 1230202003. The reversal of 1230201993 is 3991020321.

It is a happy number.

It is not a de Polignac number, because 1230201993 - 2²² = 1226007689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1230201993.

It is not an unprimeable number, because it can be changed into a prime (1230201293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534421 + ... + 536717.

It is an arithmetic number, because the mean of its divisors is an integer number (103272120).

Almost surely, 2^1230201993 is an apocalyptic number.

It is an amenable number.

1230201993 is a deficient number, since it is larger than the sum of its proper divisors (422151927).

1230201993 is a wasteful number, since it uses less digits than its factorization.

1230201993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 1230201993 is about 35074.2354585243. The cubic root of 1230201993 is about 1071.4999178724.

The spelling of 1230201993 in words is "one billion, two hundred thirty million, two hundred one thousand, nine hundred ninety-three".