40321042012 has 12 divisors (see below), whose sum is σ = 70931258496. Its totient is φ = 20054968160.

The previous prime is 40321042007. The next prime is 40321042037. The reversal of 40321042012 is 21024012304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26387353 + ... + 26388880.

It is an arithmetic number, because the mean of its divisors is an integer number (5910938208).

Almost surely, 2^40321042012 is an apocalyptic number.

It is an amenable number.

40321042012 is a deficient number, since it is larger than the sum of its proper divisors (30610216484).

40321042012 is a wasteful number, since it uses less digits than its factorization.

40321042012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52776428 (or 52776426 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 40321042012 its reverse (21024012304), we get a palindrome (61345054316).

The spelling of 40321042012 in words is "forty billion, three hundred twenty-one million, forty-two thousand, twelve".