31340143030221 has 48 divisors (see below), whose sum is σ = 48404549232000. Its totient is φ = 19505951176320.

The previous prime is 31340143030199. The next prime is 31340143030237. The reversal of 31340143030221 is 12203034104313.

It is a happy number.

31340143030221 is a `hidden beast` number, since 3 + 1 + 3 + 4 + 0 + 1 + 430 + 3 + 0 + 221 = 666.

It is not a de Polignac number, because 31340143030221 - 2²² = 31340138835917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31340143030271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15742681 + ... + 17621358.

It is an arithmetic number, because the mean of its divisors is an integer number (1008428109000).

Almost surely, 2^{31340143030221} is an apocalyptic number.

It is an amenable number.

31340143030221 is a deficient number, since it is larger than the sum of its proper divisors (17064406201779).

31340143030221 is a wasteful number, since it uses less digits than its factorization.

31340143030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33364194 (or 33364191 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 31340143030221 its reverse (12203034104313), we get a palindrome (43543177134534).

The spelling of 31340143030221 in words is "thirty-one trillion, three hundred forty billion, one hundred forty-three million, thirty thousand, two hundred twenty-one".