100515321053 has 4 divisors (see below), whose sum is σ = 114874652640. Its totient is φ = 86155989468.

The previous prime is 100515321029. The next prime is 100515321107. The reversal of 100515321053 is 350123515001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100515321053 - 2¹⁰ = 100515320029 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 (100515321253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7179665783 + ... + 7179665796.

It is an arithmetic number, because the mean of its divisors is an integer number (28718663160).

Almost surely, 2^100515321053 is an apocalyptic number.

It is an amenable number.

100515321053 is a deficient number, since it is larger than the sum of its proper divisors (14359331587).

100515321053 is an equidigital number, since it uses as much as digits as its factorization.

100515321053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14359331586.

The product of its (nonzero) digits is 2250, while the sum is 26.

Adding to 100515321053 its reverse (350123515001), we get a palindrome (450638836054).

The spelling of 100515321053 in words is "one hundred billion, five hundred fifteen million, three hundred twenty-one thousand, fifty-three".