1200000023 has 4 divisors (see below), whose sum is σ = 1202303808. Its totient is φ = 1197696240.

The previous prime is 1199999993. The next prime is 1200000041. The reversal of 1200000023 is 3200000021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3200000021 = 41 ⋅78048781.

It is a cyclic number.

It is not a de Polignac number, because 1200000023 - 2¹⁰ = 1199998999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200000073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151111 + ... + 1152152.

It is an arithmetic number, because the mean of its divisors is an integer number (300575952).

Almost surely, 2^1200000023 is an apocalyptic number.

1200000023 is a deficient number, since it is larger than the sum of its proper divisors (2303785).

1200000023 is an equidigital number, since it uses as much as digits as its factorization.

1200000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303784.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 1200000023 is about 34641.0164833539. The cubic root of 1200000023 is about 1062.6585759718.

Adding to 1200000023 its reverse (3200000021), we get a palindrome (4400000044).

The spelling of 1200000023 in words is "one billion, two hundred million, twenty-three", and thus it is an aban number.