1215000023 has 2 divisors, whose sum is σ = 1215000024. Its totient is φ = 1215000022.

The previous prime is 1214999999. The next prime is 1215000079. The reversal of 1215000023 is 3200005121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1215000023 - 2⁸ = 1214999767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1214999971 and 1215000007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1215000223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607500011 + 607500012.

It is an arithmetic number, because the mean of its divisors is an integer number (607500012).

Almost surely, 2^1215000023 is an apocalyptic number.

1215000023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215000023 is an equidigital number, since it uses as much as digits as its factorization.

1215000023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1215000023 is about 34856.8504457876. The cubic root of 1215000023 is about 1067.0679980802.

Adding to 1215000023 its reverse (3200005121), we get a palindrome (4415005144).

The spelling of 1215000023 in words is "one billion, two hundred fifteen million, twenty-three", and thus it is an aban number.