31210400322043 has 8 divisors (see below), whose sum is σ = 31264710732288. Its totient is φ = 31156129689384.

The previous prime is 31210400321951. The next prime is 31210400322097. The reversal of 31210400322043 is 34022300401213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31210400322043 - 2⁹ = 31210400321531 is a prime.

It is a super-2 number, since 2×31210400322043² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31210400321999 and 31210400322017.

It is not an unprimeable number, because it can be changed into a prime (31210400323043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8373571 + ... + 11512492.

It is an arithmetic number, because the mean of its divisors is an integer number (3908088841536).

Almost surely, 2^{31210400322043} is an apocalyptic number.

31210400322043 is a deficient number, since it is larger than the sum of its proper divisors (54310410245).

31210400322043 is a wasteful number, since it uses less digits than its factorization.

31210400322043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19888793.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31210400322043 its reverse (34022300401213), we get a palindrome (65232700723256).

The spelling of 31210400322043 in words is "thirty-one trillion, two hundred ten billion, four hundred million, three hundred twenty-two thousand, forty-three".