31404210245 has 32 divisors (see below), whose sum is σ = 40342976640. Its totient is φ = 23385026560.

The previous prime is 31404210217. The next prime is 31404210283. The reversal of 31404210245 is 54201240413.

It is not a de Polignac number, because 31404210245 - 2⁸ = 31404209989 is a prime.

It is a super-2 number, since 2×31404210245² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4712726 + ... + 4719384.

It is an arithmetic number, because the mean of its divisors is an integer number (1260718020).

Almost surely, 2^31404210245 is an apocalyptic number.

It is an amenable number.

31404210245 is a deficient number, since it is larger than the sum of its proper divisors (8938766395).

31404210245 is a wasteful number, since it uses less digits than its factorization.

31404210245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 31404210245 its reverse (54201240413), we get a palindrome (85605450658).

The spelling of 31404210245 in words is "thirty-one billion, four hundred four million, two hundred ten thousand, two hundred forty-five".