1243200023 has 8 divisors (see below), whose sum is σ = 1342693968. Its totient is φ = 1144257984.

The previous prime is 1243200019. The next prime is 1243200029. The reversal of 1243200023 is 3200023421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1243200023 - 2² = 1243200019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1243199974 and 1243200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243200029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133286 + ... + 142307.

It is an arithmetic number, because the mean of its divisors is an integer number (167836746).

Almost surely, 2^1243200023 is an apocalyptic number.

1243200023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1243200023 is a deficient number, since it is larger than the sum of its proper divisors (99493945).

1243200023 is a wasteful number, since it uses less digits than its factorization.

1243200023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275953.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1243200023 is about 35259.0417198199. The cubic root of 1243200023 is about 1075.2604447019.

Adding to 1243200023 its reverse (3200023421), we get a palindrome (4443223444).

The spelling of 1243200023 in words is "one billion, two hundred forty-three million, two hundred thousand, twenty-three".