31421535404332 has 12 divisors (see below), whose sum is σ = 55272597254056. Its totient is φ = 15629364760320.

The previous prime is 31421535404293. The next prime is 31421535404353. The reversal of 31421535404332 is 23340453512413.

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, 20350734594 + ... + 20350736137.

Almost surely, 2^{31421535404332} is an apocalyptic number.

It is an amenable number.

31421535404332 is a deficient number, since it is larger than the sum of its proper divisors (23851061849724).

31421535404332 is a wasteful number, since it uses less digits than its factorization.

31421535404332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40701470928 (or 40701470926 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 31421535404332 its reverse (23340453512413), we get a palindrome (54761988916745).

The spelling of 31421535404332 in words is "thirty-one trillion, four hundred twenty-one billion, five hundred thirty-five million, four hundred four thousand, three hundred thirty-two".