40311291012 has 24 divisors (see below), whose sum is σ = 96247114656. Its totient is φ = 13124606208.

The previous prime is 40311291011. The next prime is 40311291029. The reversal of 40311291012 is 21019211304.

40311291012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40311291011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39060813 + ... + 39061844.

It is an arithmetic number, because the mean of its divisors is an integer number (4010296444).

Almost surely, 2^40311291012 is an apocalyptic number.

It is an amenable number.

40311291012 is an abundant number, since it is smaller than the sum of its proper divisors (55935823644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40311291012 is a wasteful number, since it uses less digits than its factorization.

40311291012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78122707 (or 78122705 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 40311291012 in words is "forty billion, three hundred eleven million, two hundred ninety-one thousand, twelve".