1217310623530 has 16 divisors (see below), whose sum is σ = 2261841675264. Its totient is φ = 471217015440.

The previous prime is 1217310623483. The next prime is 1217310623587. The reversal of 1217310623530 is 353260137121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1963403922 + ... + 1963404541.

It is an arithmetic number, because the mean of its divisors is an integer number (141365104704).

Almost surely, 2^{1217310623530} is an apocalyptic number.

1217310623530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1217310623530 is a deficient number, since it is larger than the sum of its proper divisors (1044531051734).

1217310623530 is a wasteful number, since it uses less digits than its factorization.

1217310623530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926808501.

The product of its (nonzero) digits is 22680, while the sum is 34.

The spelling of 1217310623530 in words is "one trillion, two hundred seventeen billion, three hundred ten million, six hundred twenty-three thousand, five hundred thirty".