31023120353 has 2 divisors, whose sum is σ = 31023120354. Its totient is φ = 31023120352.

The previous prime is 31023120277. The next prime is 31023120379. The reversal of 31023120353 is 35302132013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30929553424 + 93566929 = 175868^2 + 9673^2 .

It is a cyclic number.

It is not a de Polignac number, because 31023120353 - 2¹⁰ = 31023119329 is a prime.

It is not a weakly prime, because it can be changed into another prime (31023120053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511560176 + 15511560177.

It is an arithmetic number, because the mean of its divisors is an integer number (15511560177).

Almost surely, 2^31023120353 is an apocalyptic number.

It is an amenable number.

31023120353 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023120353 is an equidigital number, since it uses as much as digits as its factorization.

31023120353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 31023120353 its reverse (35302132013), we get a palindrome (66325252366).

The spelling of 31023120353 in words is "thirty-one billion, twenty-three million, one hundred twenty thousand, three hundred fifty-three".