401312012 has 6 divisors (see below), whose sum is σ = 702296028. Its totient is φ = 200656004.

The previous prime is 401311993. The next prime is 401312017. The reversal of 401312012 is 210213104.

It is a super-2 number, since 2×401312012² = 322102661950976288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401312017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50163998 + ... + 50164005.

It is an arithmetic number, because the mean of its divisors is an integer number (117049338).

Almost surely, 2^401312012 is an apocalyptic number.

It is an amenable number.

401312012 is a deficient number, since it is larger than the sum of its proper divisors (300984016).

401312012 is a wasteful number, since it uses less digits than its factorization.

401312012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100328007 (or 100328005 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 401312012 is about 20032.7734475284. The cubic root of 401312012 is about 737.6110028073.

Adding to 401312012 its reverse (210213104), we get a palindrome (611525116).

The spelling of 401312012 in words is "four hundred one million, three hundred twelve thousand, twelve".