31411221303432 has 16 divisors (see below), whose sum is σ = 78528053258640. Its totient is φ = 10470407101136.

The previous prime is 31411221303421. The next prime is 31411221303433. The reversal of 31411221303432 is 23430312211413.

It is a self number, because there is not a number n which added to its sum of digits gives 31411221303432.

It is not an unprimeable number, because it can be changed into a prime (31411221303433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654400443798 + ... + 654400443845.

It is an arithmetic number, because the mean of its divisors is an integer number (4908003328665).

Almost surely, 2^{31411221303432} is an apocalyptic number.

It is an amenable number.

31411221303432 is an abundant number, since it is smaller than the sum of its proper divisors (47116831955208).

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

31411221303432 is a wasteful number, since it uses less digits than its factorization.

31411221303432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308800887652 (or 1308800887648 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 31411221303432 its reverse (23430312211413), we get a palindrome (54841533514845).

The spelling of 31411221303432 in words is "thirty-one trillion, four hundred eleven billion, two hundred twenty-one million, three hundred three thousand, four hundred thirty-two".