1012100312 has 8 divisors (see below), whose sum is σ = 1897688100. Its totient is φ = 506050152.

The previous prime is 1012100311. The next prime is 1012100317. The reversal of 1012100312 is 2130012101.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1012100293 and 1012100302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012100311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63256262 + ... + 63256277.

Almost surely, 2^1012100312 is an apocalyptic number.

It is an amenable number.

1012100312 is a deficient number, since it is larger than the sum of its proper divisors (885587788).

1012100312 is a wasteful number, since it uses less digits than its factorization.

1012100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126512545 (or 126512541 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1012100312 is about 31813.5240424572. The cubic root of 1012100312 is about 1004.0172772062.

Adding to 1012100312 its reverse (2130012101), we get a palindrome (3142112413).

The spelling of 1012100312 in words is "one billion, twelve million, one hundred thousand, three hundred twelve".