40310042312 has 8 divisors (see below), whose sum is σ = 75581329350. Its totient is φ = 20155021152.

The previous prime is 40310042291. The next prime is 40310042321. The reversal of 40310042312 is 21324001304.

It can be written as a sum of positive squares in only one way, i.e., 27388264036 + 12921778276 = 165494^2 + 113674^2 .

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

It is a super-2 number, since 2×40310042312² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2519377637 + ... + 2519377652.

Almost surely, 2^40310042312 is an apocalyptic number.

It is an amenable number.

40310042312 is a deficient number, since it is larger than the sum of its proper divisors (35271287038).

40310042312 is a wasteful number, since it uses less digits than its factorization.

40310042312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038755295 (or 5038755291 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40310042312 its reverse (21324001304), we get a palindrome (61634043616).

The spelling of 40310042312 in words is "forty billion, three hundred ten million, forty-two thousand, three hundred twelve".