31200123343 has 2 divisors, whose sum is σ = 31200123344. Its totient is φ = 31200123342.

The previous prime is 31200123299. The next prime is 31200123359. The reversal of 31200123343 is 34332100213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31200123343 - 2¹³ = 31200115151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31200123373) by changing a digit.

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 as a sum of consecutive naturals, namely, 15600061671 + 15600061672.

It is an arithmetic number, because the mean of its divisors is an integer number (15600061672).

Almost surely, 2^31200123343 is an apocalyptic number.

31200123343 is a deficient number, since it is larger than the sum of its proper divisors (1).

31200123343 is an equidigital number, since it uses as much as digits as its factorization.

31200123343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31200123343 its reverse (34332100213), we get a palindrome (65532223556).

The spelling of 31200123343 in words is "thirty-one billion, two hundred million, one hundred twenty-three thousand, three hundred forty-three".