100012312012 has 24 divisors (see below), whose sum is σ = 176408354304. Its totient is φ = 49610378112.

The previous prime is 100012311991. The next prime is 100012312019. The reversal of 100012312012 is 210213210001.

It is a junction number, because it is equal to n+sod(n) for n = 100012311983 and 100012312001.

It is not an unprimeable number, because it can be changed into a prime (100012312019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841333 + ... + 952819.

It is an arithmetic number, because the mean of its divisors is an integer number (7350348096).

Almost surely, 2^100012312012 is an apocalyptic number.

It is an amenable number.

100012312012 is a deficient number, since it is larger than the sum of its proper divisors (76396042292).

100012312012 is a wasteful number, since it uses less digits than its factorization.

100012312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113265 (or 113263 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 100012312012 its reverse (210213210001), we get a palindrome (310225522013).

The spelling of 100012312012 in words is "one hundred billion, twelve million, three hundred twelve thousand, twelve".