100123303331 has 4 divisors (see below), whose sum is σ = 100274776464. Its totient is φ = 99971830200.

The previous prime is 100123303327. The next prime is 100123303337. The reversal of 100123303331 is 133303321001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133303321001 = 4919 ⋅27099679.

It is a cyclic number.

It is not a de Polignac number, because 100123303331 - 2² = 100123303327 is a prime.

It is a super-2 number, since 2×100123303331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100123303337) 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, 75735575 + ... + 75736896.

It is an arithmetic number, because the mean of its divisors is an integer number (25068694116).

Almost surely, 2^100123303331 is an apocalyptic number.

100123303331 is a deficient number, since it is larger than the sum of its proper divisors (151473133).

100123303331 is an equidigital number, since it uses as much as digits as its factorization.

100123303331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151473132.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 100123303331 its reverse (133303321001), we get a palindrome (233426624332).

The spelling of 100123303331 in words is "one hundred billion, one hundred twenty-three million, three hundred three thousand, three hundred thirty-one".