31423232203450 has 48 divisors (see below), whose sum is σ = 59590206234936. Its totient is φ = 12323807974400.

The previous prime is 31423232203421. The next prime is 31423232203483. The reversal of 31423232203450 is 5430223232413.

It can be written as a sum of positive squares in 12 ways, for example, as 344513824209 + 31078718379241 = 586953^2 + 5574829^2 .

It is a super-2 number, since 2×31423232203450² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78667 + ... + 7927966.

Almost surely, 2^{31423232203450} is an apocalyptic number.

31423232203450 is a deficient number, since it is larger than the sum of its proper divisors (28166974031486).

31423232203450 is a wasteful number, since it uses less digits than its factorization.

31423232203450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008179 (or 8008174 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 31423232203450 its reverse (5430223232413), we get a palindrome (36853455435863).

The spelling of 31423232203450 in words is "thirty-one trillion, four hundred twenty-three billion, two hundred thirty-two million, two hundred three thousand, four hundred fifty".