10001312012 has 24 divisors (see below), whose sum is σ = 18119992800. Its totient is φ = 4824441216.

The previous prime is 10001311997. The next prime is 10001312021. The reversal of 10001312012 is 21021310001.

It is a super-2 number, since 2×10001312012² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10001311984 and 10001312002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118064 + ... + 184232.

It is an arithmetic number, because the mean of its divisors is an integer number (754999700).

Almost surely, 2^10001312012 is an apocalyptic number.

It is an amenable number.

10001312012 is a deficient number, since it is larger than the sum of its proper divisors (8118680788).

10001312012 is a wasteful number, since it uses less digits than its factorization.

10001312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67505 (or 67503 counting only the distinct ones).

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

Adding to 10001312012 its reverse (21021310001), we get a palindrome (31022622013).

The spelling of 10001312012 in words is "ten billion, one million, three hundred twelve thousand, twelve".