31344402431000 has 32 divisors (see below), whose sum is σ = 73345901690880. Its totient is φ = 12537760972000.

The previous prime is 31344402430997. The next prime is 31344402431011. The reversal of 31344402431000 is 13420444313.

It is a happy number.

It is a super-2 number, since 2×31344402431000² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15672200216 + ... + 15672202215.

It is an arithmetic number, because the mean of its divisors is an integer number (2292059427840).

Almost surely, 2^{31344402431000} is an apocalyptic number.

It is an amenable number.

31344402431000 is an abundant number, since it is smaller than the sum of its proper divisors (42001499259880).

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

31344402431000 is a wasteful number, since it uses less digits than its factorization.

31344402431000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31344402452 (or 31344402438 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 31344402431000 its reverse (13420444313), we get a palindrome (31357822875313).

The spelling of 31344402431000 in words is "thirty-one trillion, three hundred forty-four billion, four hundred two million, four hundred thirty-one thousand".