31304430343201 has 16 divisors (see below), whose sum is σ = 32574884209920. Its totient is φ = 30063622875520.

The previous prime is 31304430343189. The next prime is 31304430343217. The reversal of 31304430343201 is 10234303440313.

It is a cyclic number.

It is not a de Polignac number, because 31304430343201 - 2⁷ = 31304430343073 is a prime.

It is a super-2 number, since 2×31304430343201² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31304430353201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20754265 + ... + 22211446.

It is an arithmetic number, because the mean of its divisors is an integer number (2035930263120).

Almost surely, 2^{31304430343201} is an apocalyptic number.

It is an amenable number.

31304430343201 is a deficient number, since it is larger than the sum of its proper divisors (1270453866719).

31304430343201 is a wasteful number, since it uses less digits than its factorization.

31304430343201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42966056.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 31304430343201 its reverse (10234303440313), we get a palindrome (41538733783514).

The spelling of 31304430343201 in words is "thirty-one trillion, three hundred four billion, four hundred thirty million, three hundred forty-three thousand, two hundred one".