101213321504 has 12 divisors (see below), whose sum is σ = 199263726774. Its totient is φ = 50606660736.

The previous prime is 101213321491. The next prime is 101213321527. The reversal of 101213321504 is 405123312101.

It can be written as a sum of positive squares in only one way, i.e., 98503077904 + 2710243600 = 313852^2 + 52060^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101213321504.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1581458117 + ... + 1581458180.

Almost surely, 2^101213321504 is an apocalyptic number.

It is an amenable number.

101213321504 is a deficient number, since it is larger than the sum of its proper divisors (98050405270).

101213321504 is an equidigital number, since it uses as much as digits as its factorization.

101213321504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162916307 (or 3162916299 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 101213321504 its reverse (405123312101), we get a palindrome (506336633605).

The spelling of 101213321504 in words is "one hundred one billion, two hundred thirteen million, three hundred twenty-one thousand, five hundred four".