100723322145 has 16 divisors (see below), whose sum is σ = 166714464960. Its totient is φ = 51866721984.

The previous prime is 100723322143. The next prime is 100723322149. The reversal of 100723322145 is 541223327001.

It is not a de Polignac number, because 100723322145 - 2¹ = 100723322143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100723322143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115773499 + ... + 115774368.

It is an arithmetic number, because the mean of its divisors is an integer number (10419654060).

Almost surely, 2^100723322145 is an apocalyptic number.

100723322145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100723322145 is a deficient number, since it is larger than the sum of its proper divisors (65991142815).

100723322145 is a wasteful number, since it uses less digits than its factorization.

100723322145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231547904.

The product of its (nonzero) digits is 10080, while the sum is 30.

Adding to 100723322145 its reverse (541223327001), we get a palindrome (641946649146).

The spelling of 100723322145 in words is "one hundred billion, seven hundred twenty-three million, three hundred twenty-two thousand, one hundred forty-five".