1202000123 has 2 divisors, whose sum is σ = 1202000124. Its totient is φ = 1202000122.

The previous prime is 1202000101. The next prime is 1202000143. The reversal of 1202000123 is 3210002021.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3210002021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202000123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202000143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601000061 + 601000062.

It is an arithmetic number, because the mean of its divisors is an integer number (601000062).

Almost surely, 2^1202000123 is an apocalyptic number.

1202000123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202000123 is an equidigital number, since it uses as much as digits as its factorization.

1202000123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1202000123 is about 34669.8734205939. The cubic root of 1202000123 is about 1063.2486436439.

Adding to 1202000123 its reverse (3210002021), we get a palindrome (4412002144).

The spelling of 1202000123 in words is "one billion, two hundred two million, one hundred twenty-three", and thus it is an aban number.