100545121415 has 16 divisors (see below), whose sum is σ = 122130505728. Its totient is φ = 79452218016.

The previous prime is 100545121343. The next prime is 100545121433. The reversal of 100545121415 is 514121545001.

It is a cyclic number.

It is not a de Polignac number, because 100545121415 - 2³⁶ = 31825644679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2573114 + ... + 2611896.

It is an arithmetic number, because the mean of its divisors is an integer number (7633156608).

Almost surely, 2^100545121415 is an apocalyptic number.

100545121415 is a deficient number, since it is larger than the sum of its proper divisors (21585384313).

100545121415 is an equidigital number, since it uses as much as digits as its factorization.

100545121415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45118.

The product of its (nonzero) digits is 4000, while the sum is 29.

Adding to 100545121415 its reverse (514121545001), we get a palindrome (614666666416).

The spelling of 100545121415 in words is "one hundred billion, five hundred forty-five million, one hundred twenty-one thousand, four hundred fifteen".