100312231211 has 16 divisors (see below), whose sum is σ = 111102062400. Its totient is φ = 90085721088.

The previous prime is 100312231189. The next prime is 100312231249. The reversal of 100312231211 is 112132213001.

It is a de Polignac number, because none of the positive numbers 2^k-100312231211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100312231211.

It is not an unprimeable number, because it can be changed into a prime (100312231111) 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, 153716 + ... + 473553.

It is an arithmetic number, because the mean of its divisors is an integer number (6943878900).

Almost surely, 2^100312231211 is an apocalyptic number.

100312231211 is a deficient number, since it is larger than the sum of its proper divisors (10789831189).

100312231211 is a wasteful number, since it uses less digits than its factorization.

100312231211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627718.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 100312231211 its reverse (112132213001), we get a palindrome (212444444212).

The spelling of 100312231211 in words is "one hundred billion, three hundred twelve million, two hundred thirty-one thousand, two hundred eleven".