1230500523 has 16 divisors (see below), whose sum is σ = 1910428416. Its totient is φ = 689875680.

The previous prime is 1230500497. The next prime is 1230500533. The reversal of 1230500523 is 3250050321.

It is not a de Polignac number, because 1230500523 - 2⁶ = 1230500459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1230500523.

It is not an unprimeable number, because it can be changed into a prime (1230500533) 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, 551673 + ... + 553898.

It is an arithmetic number, because the mean of its divisors is an integer number (119401776).

Almost surely, 2^1230500523 is an apocalyptic number.

1230500523 is a deficient number, since it is larger than the sum of its proper divisors (679927893).

1230500523 is a wasteful number, since it uses less digits than its factorization.

1230500523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105634.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 1230500523 is about 35078.4908882922. The cubic root of 1230500523 is about 1071.5865835857.

Adding to 1230500523 its reverse (3250050321), we get a palindrome (4480550844).

The spelling of 1230500523 in words is "one billion, two hundred thirty million, five hundred thousand, five hundred twenty-three".