40401310312 has 32 divisors (see below), whose sum is σ = 82873212480. Its totient is φ = 18312194560.

The previous prime is 40401310291. The next prime is 40401310321. The reversal of 40401310312 is 21301310404.

It is a self number, because there is not a number n which added to its sum of digits gives 40401310312.

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, 619228 + ... + 681355.

It is an arithmetic number, because the mean of its divisors is an integer number (2589787890).

Almost surely, 2^40401310312 is an apocalyptic number.

It is an amenable number.

40401310312 is an abundant number, since it is smaller than the sum of its proper divisors (42471902168).

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

40401310312 is a wasteful number, since it uses less digits than its factorization.

40401310312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300953 (or 1300949 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 40401310312 its reverse (21301310404), we get a palindrome (61702620716).

The spelling of 40401310312 in words is "forty billion, four hundred one million, three hundred ten thousand, three hundred twelve".