1213010523 has 12 divisors (see below), whose sum is σ = 1785186000. Its totient is φ = 793415376.

The previous prime is 1213010471. The next prime is 1213010569. The reversal of 1213010523 is 3250103121.

1213010523 is a `hidden beast` number, since 1 + 2 + 130 + 10 + 523 = 666.

It is not a de Polignac number, because 1213010523 - 2²⁴ = 1196233307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213010496 and 1213010505.

It is not an unprimeable number, because it can be changed into a prime (1213012523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1271023 + ... + 1271976.

It is an arithmetic number, because the mean of its divisors is an integer number (148765500).

Almost surely, 2^1213010523 is an apocalyptic number.

1213010523 is a deficient number, since it is larger than the sum of its proper divisors (572175477).

1213010523 is a wasteful number, since it uses less digits than its factorization.

1213010523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543058 (or 2543055 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1213010523 is about 34828.3006045371. The cubic root of 1213010523 is about 1066.4852569204.

Adding to 1213010523 its reverse (3250103121), we get a palindrome (4463113644).

The spelling of 1213010523 in words is "one billion, two hundred thirteen million, ten thousand, five hundred twenty-three".