31404040132 has 6 divisors (see below), whose sum is σ = 54957070238. Its totient is φ = 15702020064.

The previous prime is 31404040099. The next prime is 31404040133. The reversal of 31404040132 is 23104040413.

It can be written as a sum of positive squares in only one way, i.e., 28004683716 + 3399356416 = 167346^2 + 58304^2 .

It is a super-2 number, since 2×31404040132² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31404040133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3925505013 + ... + 3925505020.

Almost surely, 2^31404040132 is an apocalyptic number.

It is an amenable number.

31404040132 is a deficient number, since it is larger than the sum of its proper divisors (23553030106).

31404040132 is a wasteful number, since it uses less digits than its factorization.

31404040132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7851010037 (or 7851010035 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31404040132 its reverse (23104040413), we get a palindrome (54508080545).

The spelling of 31404040132 in words is "thirty-one billion, four hundred four million, forty thousand, one hundred thirty-two".