1215307423 has 6 divisors (see below), whose sum is σ = 1335833912. Its totient is φ = 1104824820.

The previous prime is 1215307397. The next prime is 1215307427. The reversal of 1215307423 is 3247035121.

It is not a de Polignac number, because 1215307423 - 2²⁹ = 678436511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1215307391 and 1215307400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215307427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5021811 + ... + 5022052.

Almost surely, 2^1215307423 is an apocalyptic number.

1215307423 is a deficient number, since it is larger than the sum of its proper divisors (120526489).

1215307423 is a wasteful number, since it uses less digits than its factorization.

1215307423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10043885 (or 10043874 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1215307423 is about 34861.2596301396. The cubic root of 1215307423 is about 1067.1579813552.

The spelling of 1215307423 in words is "one billion, two hundred fifteen million, three hundred seven thousand, four hundred twenty-three".