40311231104 has 48 divisors (see below), whose sum is σ = 80762070510. Its totient is φ = 20042173440.

The previous prime is 40311231091. The next prime is 40311231127. The reversal of 40311231104 is 40113211304.

It can be written as a sum of positive squares in 3 ways, for example, as 23150231104 + 17161000000 = 152152^2 + 131000^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4188602 + ... + 4198214.

Almost surely, 2^40311231104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40311231104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40381035255).

40311231104 is an abundant number, since it is smaller than the sum of its proper divisors (40450839406).

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

40311231104 is an frugal number, since it uses more digits than its factorization.

40311231104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9989 (or 9796 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 40311231104 its reverse (40113211304), we get a palindrome (80424442408).

The spelling of 40311231104 in words is "forty billion, three hundred eleven million, two hundred thirty-one thousand, one hundred four".