31451431422232 has 16 divisors (see below), whose sum is σ = 61004931638400. Its totient is φ = 15183449652000.

The previous prime is 31451431422227. The next prime is 31451431422239. The reversal of 31451431422232 is 23222413415413.

It is a super-3 number, since 3×31451431422232³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31451431422191 and 31451431422200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31451431422239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67783257144 + ... + 67783257607.

It is an arithmetic number, because the mean of its divisors is an integer number (3812808227400).

Almost surely, 2^{31451431422232} is an apocalyptic number.

It is an amenable number.

31451431422232 is a deficient number, since it is larger than the sum of its proper divisors (29553500216168).

31451431422232 is a wasteful number, since it uses less digits than its factorization.

31451431422232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135566514786 (or 135566514782 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

Adding to 31451431422232 its reverse (23222413415413), we get a palindrome (54673844837645).

The spelling of 31451431422232 in words is "thirty-one trillion, four hundred fifty-one billion, four hundred thirty-one million, four hundred twenty-two thousand, two hundred thirty-two".