31242401333232 has 20 divisors (see below), whose sum is σ = 80709536777640. Its totient is φ = 10414133777728.

The previous prime is 31242401333179. The next prime is 31242401333243. The reversal of 31242401333232 is 23233310424213.

It is a super-2 number, since 2×31242401333232² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31242401333193 and 31242401333202.

It is a congruent number.

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, 325441680507 + ... + 325441680602.

It is an arithmetic number, because the mean of its divisors is an integer number (4035476838882).

Almost surely, 2^{31242401333232} is an apocalyptic number.

It is an amenable number.

31242401333232 is an abundant number, since it is smaller than the sum of its proper divisors (49467135444408).

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

31242401333232 is a wasteful number, since it uses less digits than its factorization.

31242401333232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650883361120 (or 650883361114 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 31242401333232 its reverse (23233310424213), we get a palindrome (54475711757445).

The spelling of 31242401333232 in words is "thirty-one trillion, two hundred forty-two billion, four hundred one million, three hundred thirty-three thousand, two hundred thirty-two".