31503252343 has 2 divisors, whose sum is σ = 31503252344. Its totient is φ = 31503252342.

The previous prime is 31503252323. The next prime is 31503252349. The reversal of 31503252343 is 34325230513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31503252343 - 2¹³ = 31503244151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31503252349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15751626171 + 15751626172.

It is an arithmetic number, because the mean of its divisors is an integer number (15751626172).

Almost surely, 2^31503252343 is an apocalyptic number.

31503252343 is a deficient number, since it is larger than the sum of its proper divisors (1).

31503252343 is an equidigital number, since it uses as much as digits as its factorization.

31503252343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 31503252343 its reverse (34325230513), we get a palindrome (65828482856).

The spelling of 31503252343 in words is "thirty-one billion, five hundred three million, two hundred fifty-two thousand, three hundred forty-three".