1230323511 has 16 divisors (see below), whose sum is σ = 1737376640. Its totient is φ = 772273440.

The previous prime is 1230323461. The next prime is 1230323513. The reversal of 1230323511 is 1153230321.

It is not a de Polignac number, because 1230323511 - 2²⁷ = 1096105783 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 (1230323513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56920 + ... + 75501.

It is an arithmetic number, because the mean of its divisors is an integer number (108586040).

Almost surely, 2^1230323511 is an apocalyptic number.

1230323511 is a deficient number, since it is larger than the sum of its proper divisors (507053129).

1230323511 is a wasteful number, since it uses less digits than its factorization.

1230323511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132606.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1230323511 is about 35075.9677129513. The cubic root of 1230323511 is about 1071.5351972387.

Adding to 1230323511 its reverse (1153230321), we get a palindrome (2383553832).

The spelling of 1230323511 in words is "one billion, two hundred thirty million, three hundred twenty-three thousand, five hundred eleven".