100311032123 has 4 divisors (see below), whose sum is σ = 100395116328. Its totient is φ = 100226947920.

The previous prime is 100311032119. The next prime is 100311032141. The reversal of 100311032123 is 321230113001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100311032123 - 2² = 100311032119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100311032153) 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, 42040313 + ... + 42042698.

It is an arithmetic number, because the mean of its divisors is an integer number (25098779082).

Almost surely, 2^100311032123 is an apocalyptic number.

100311032123 is a deficient number, since it is larger than the sum of its proper divisors (84084205).

100311032123 is an equidigital number, since it uses as much as digits as its factorization.

100311032123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84084204.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100311032123 its reverse (321230113001), we get a palindrome (421541145124).

The spelling of 100311032123 in words is "one hundred billion, three hundred eleven million, thirty-two thousand, one hundred twenty-three".